diff --git a/data/03/AE/87/03AE87D526165201FF77FBDD760F733C.xml b/data/03/AE/87/03AE87D526165201FF77FBDD760F733C.xml new file mode 100644 index 00000000000..0901f0faddf --- /dev/null +++ b/data/03/AE/87/03AE87D526165201FF77FBDD760F733C.xml @@ -0,0 +1,249 @@ + + + +A protocol for differentiating late Quaternary leporids in southern California with remarks on Project 23 lagomorphs at Rancho La Brea, Los Angeles, California, USA + + + +Author + +Fox, Nathaniel S. + + + +Author + +Takeuchi, Gary T. + + + +Author + +Farrell, Aisling B. + + + +Author + +Blois, Jessica L. + +text + + +PaleoBios + + +2022 + +46192 + + +36 + + +1 +20 + + + +journal article +10.5070/P9361046192 +0031-0298 + + + + + + +SYLVILAGUS AUDUBONII +BAIRD 1857 + + + + + + +Referred specimens +— +LACMP +23-39811, left dentary fragment with p3, p4, m2; +LACMP +23-32047, right dentary fragment with p3-m1; +LACMP +23-39819, right dentary fragment with p3-m1; +LACMP +23-39820, right dentary fragment with partial p3-m2. The following specimens represent complete left p3s: +LACMP +23 +- +28084, +LACMP +23-28555, +LACMP +23-28661, +LACMP +23-31781, +LACMP +23-35608, +LACMP +23-35763, +LACMP +23-35847, +LACMP +23-35885, +LACMP +23-35937, +LACMP +23-40167, +LACMP +23-40209, +LACMP +23-40284, +LACMP +23-40285, +LACMP +23-40286, +LACMP +23-40287.The following specimens represent complete right p3s: +LACMP +23-28341, +LACMP +23-28519, +LACMP +23-28556, +LACMP +23-28858, +LACMP +23-33962, +LACMP +23-34117, +LACMP +23-35614, +LACMP +23-35696, +LACMP +23-35836, +LACMP +23-35839, +LACMP +23-35840, +LACMP +23-35881, +LACMP +23-35883, +LACMP +23-39874, +LACMP +23-40166, +LACMP +23-40210, +LACMP +23-40211. The following specimens represent partial left p3s and left p3 fragments: +LACMP +23-28266, +LACMP +23-31782, +LACMP +23-34259, +LACMP +23-34260, +LACMP +23-35771, +LACMP +23-40039, +LACMP +23-40288. The following specimens represent partial right p3s and right p3 fragments: +LACMP +23-28105, +LACMP +23-35618, +LACMP +23-35619, +LACMP +23-35645, +LACMP +23-39929, + + +LACMP +23-40110, +LACMP +23-40168, +LACMP +23-40212, +LACMP +23-40291. + + + + +Remarks +— +Fifty-two specimens +from Project 23 are assigned to + +S +. +audubonii + +based on moderate or complex p3 crenulation ( +Table 2 +; Figs. 4, 5C). We cannot eliminate the possibility that some specimens belong to + +S +. +nuttallii + +; however, we consider this unlikely since most p3s with l/w <1.25 (i.e., those not likely belonging to + +S +. +bachmani + +) exhibit moderate or complex crenulation at the tooth surface and/or base (Fig. 4; Appendix +Table 2 +). If + +S +. +nuttalli + +was present and common in the local region encompassing Project 23, we would expect proportionally more non-narrow p3s to exhibit simple crenulation. Further, + +S +. +nuttallii + +is currently restricted to intermountain regions> +100 miles +from Los Angeles ( +Hall and Kelson 1959 +, +Chapman 1975 +). All specimens with more complex crenulation at the tooth base relative to the occlusal surface are considered juvenile individuals of + +S +. +audubonii + +. Excluding suspected juveniles, p3s from Project 23 are, overall, ~9% smaller than extant + +S. audubonii + +(mean= +2.55mm +, +2.14mm +, and 1.19 for p3 length, width, and l/w respectively; Fig. 4, Appendix +Table 2 +). Size changes between extant (n=30) and fossil (n=25) + +S +. +audubonii + +are statistically significant (t=4.6205, df=48.06, p<0.001 for p3 length; t=4.5672, df=51.154, p<0.001 for p3 width). + + + + \ No newline at end of file diff --git a/data/03/AE/87/03AE87D526165206FC2AFB8170C17671.xml b/data/03/AE/87/03AE87D526165206FC2AFB8170C17671.xml new file mode 100644 index 00000000000..c0cb99457ca --- /dev/null +++ b/data/03/AE/87/03AE87D526165206FC2AFB8170C17671.xml @@ -0,0 +1,125 @@ + + + +A protocol for differentiating late Quaternary leporids in southern California with remarks on Project 23 lagomorphs at Rancho La Brea, Los Angeles, California, USA + + + +Author + +Fox, Nathaniel S. + + + +Author + +Takeuchi, Gary T. + + + +Author + +Farrell, Aisling B. + + + +Author + +Blois, Jessica L. + +text + + +PaleoBios + + +2022 + +46192 + + +36 + + +1 +20 + + + +journal article +10.5070/P9361046192 +0031-0298 + + + + + + +SYLVILAGUS BACHMANI +WATERHOUSE 1839 + + + + + + +Referred specimens +— +LACMP +23-32045, left dentary fragment with p3. The following specimens represent complete left p3s: +LACMP +23-29229, +LACMP +23-33861. The following specimens represent complete right p3s: +LACMP +23-28082, +LACMP +23-34262, +LACMP +23-35844, +LACMP +23-36615. + + + + +Remarks +— +Seven specimens +from Project 23 are assigned to + +S. bachmani + +based on simple p3 crenulation at the occlusal surface and base of the tooth, p3 lengths < +3.1 mm +, and a mean p3 l/w>1.25 ( +Table 2 +, Figs. 4, 5D). Since adult individuals of this species usually exhibit simple crenulation (Table 1; Fig. 4), it is difficult to identify juveniles from surface-base changes in crenulation complexity. However, specimens can be identified as juvenile if the width at the occlusal surface is less than the width at the tooth base (White 1991). Excluding potential juvenile p3s of + +S +. +bachmani + +from Project 23, the sample is ~11% smaller than recent + +S +. +bachmani + +(mean= +2.19mm +, +1.71mm +, and 1.28 for p3 length, width, and l/w respectively; Fig. 4; Appendix +Table 2 +). Size changes between extant (n=30) and fossil (n=7) + +S +. +bachmani + +are statistically significant (t=2.8861, df=8.2077, p=0.0198 for p3 length; t=4.6124, df=12.923, p<0.001 for p3 width). + + + + \ No newline at end of file diff --git a/data/03/E7/87/03E787A6FE22FF8DA989FA34FAD2FD8C.xml b/data/03/E7/87/03E787A6FE22FF8DA989FA34FAD2FD8C.xml index 6f025a631ae..e51774942b7 100644 --- a/data/03/E7/87/03E787A6FE22FF8DA989FA34FAD2FD8C.xml +++ b/data/03/E7/87/03E787A6FE22FF8DA989FA34FAD2FD8C.xml @@ -1,42 +1,43 @@ - - - -Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA + + + +Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA - - -Author + + +Author -Cicimurri, David J. +Cicimurri, David J. - - -Author + + +Author -Knight, James L. +Knight, James L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -31 + +1 +31 -journal article -10.5070/P9361043964 -0031-0298 -3F95876E-933FF-48AF-9CF0-A840A333220B +journal article +10.5070/P9361043964 +0031-0298 +13750243 +3F95876E-933FF-48AF-9CF0-A840A333220B - + @@ -54,7 +55,7 @@ ( -FIG. 3J–L +FIG. 3J–L ) @@ -66,9 +67,9 @@ , tooth; SC 2001.1.19 , 40 teeth;SC2013.38.98, anterior tooth ( -Fig. 3J, K +Fig. 3J, K );SC2013.38.99, lateral tooth ( -Fig. 3L +Fig. 3L ); SC2013.38.100, 18 teeth; SC2013.38.101, 32 teeth; SC2013.38.102, eight posterior teeth; SC2013.38.103, eight distal lateral teeth. diff --git a/data/03/E7/87/03E787A6FE2EFF8EAAB5F9A8FE7EFDD7.xml b/data/03/E7/87/03E787A6FE2EFF8EAAB5F9A8FE7EFDD7.xml index cf31a1da2e8..6e35e68d646 100644 --- a/data/03/E7/87/03E787A6FE2EFF8EAAB5F9A8FE7EFDD7.xml +++ b/data/03/E7/87/03E787A6FE2EFF8EAAB5F9A8FE7EFDD7.xml @@ -1,42 +1,43 @@ - - - -Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA + + + +Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA - - -Author + + +Author -Cicimurri, David J. +Cicimurri, David J. - - -Author + + +Author -Knight, James L. +Knight, James L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -31 + +1 +31 -journal article -10.5070/P9361043964 -0031-0298 -3F95876E-933FF-48AF-9CF0-A840A333220B +journal article +10.5070/P9361043964 +0031-0298 +13750243 +3F95876E-933FF-48AF-9CF0-A840A333220B - + @@ -47,7 +48,7 @@ ( -FIG. 2H +FIG. 2H ) diff --git a/data/03/E7/87/03E787A6FE3DFF92AA59FEADFA2DF980.xml b/data/03/E7/87/03E787A6FE3DFF92AA59FEADFA2DF980.xml index 6ea276b98f8..a9c50c90b9c 100644 --- a/data/03/E7/87/03E787A6FE3DFF92AA59FEADFA2DF980.xml +++ b/data/03/E7/87/03E787A6FE3DFF92AA59FEADFA2DF980.xml @@ -1,42 +1,43 @@ - - - -Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA + + + +Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA - - -Author + + +Author -Cicimurri, David J. +Cicimurri, David J. - - -Author + + +Author -Knight, James L. +Knight, James L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -31 + +1 +31 -journal article -10.5070/P9361043964 -0031-0298 -3F95876E-933FF-48AF-9CF0-A840A333220B +journal article +10.5070/P9361043964 +0031-0298 +13750243 +3F95876E-933FF-48AF-9CF0-A840A333220B - + @@ -50,7 +51,7 @@ CICIMURRI AND EBERSOLE, 2015 ( -FIG. 7F–I +FIG. 7F–I ) @@ -83,9 +84,9 @@ Upper median teeth of Pseudaetobatus are wide and straight ( -Fig. 7F +Fig. 7F ), whereas median teeth from the lower dental battery are more arcuate ( -Fig. 7G +Fig. 7G ). Median teeth are easily distinguished from those of Aetomylaeus @@ -95,7 +96,7 @@ are wide and straight ( Pseudaetobatus are also sinuous ( -Fig. 7I +Fig. 7I ). diff --git a/data/2B/61/87/2B618785FFF2EC72FE90C511FC2E90F0.xml b/data/2B/61/87/2B618785FFF2EC72FE90C511FC2E90F0.xml index 49d37b71363..564e75b3f1e 100644 --- a/data/2B/61/87/2B618785FFF2EC72FE90C511FC2E90F0.xml +++ b/data/2B/61/87/2B618785FFF2EC72FE90C511FC2E90F0.xml @@ -1,35 +1,36 @@ - - - -Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover + + + +Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover - - -Author + + +Author -Squires, Richard L. +Squires, Richard L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -22 + +1 +22 -journal article -10.5070/P9361043434 -0031-0298 +journal article +10.5070/P9361043434 +0031-0298 +13750227 - + @@ -42,7 +43,7 @@ -FIG. 4A–C +FIG. 4A–C diff --git a/data/2B/61/87/2B618785FFF2EC75FC3FC4B0FE9893D6.xml b/data/2B/61/87/2B618785FFF2EC75FC3FC4B0FE9893D6.xml index e8a3d137823..46fc3f7a8ed 100644 --- a/data/2B/61/87/2B618785FFF2EC75FC3FC4B0FE9893D6.xml +++ b/data/2B/61/87/2B618785FFF2EC75FC3FC4B0FE9893D6.xml @@ -1,33 +1,34 @@ - - - -Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover + + + +Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover - - -Author + + +Author -Squires, Richard L. +Squires, Richard L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -22 + +1 +22 -journal article -10.5070/P9361043434 -0031-0298 +journal article +10.5070/P9361043434 +0031-0298 +13750227 @@ -42,7 +43,7 @@ -FIGS. 4D–H +FIGS. 4D–H @@ -85,7 +86,7 @@ Diller (1896 . p. 458). - + Figure 4. See caption on the bottom of page 11. @@ -354,9 +355,9 @@ Apertural view of hypotype LACMIP 14835, LACMIP Locality 40371. Remarks— -Figure 4D +Figure 4D shows the prominent posteriormost denticle on the interior of the outer lip. Although the anterior siphonal canal is damaged or broken on most specimens, a few specimens from the Llajas Formation show that this canal is short, twisted, not notched ( -Fig. 4H +Fig. 4H ), and with an angular left-lateral edge. At one locality in the Llajas Formation of Simi Valley, southern California , four out of @@ -395,7 +396,7 @@ is unnotched. Galeodea tuberculiformis has the most widespread latitudinal distribution of any of the cassids found in the CSWNA region ( -Fig. 1 +Fig. 1 ). It is found, therefore, in numerous formations, and it is likely the earliest cassid found in this region ( Fig. 2 ). As noted by diff --git a/data/2B/61/87/2B618785FFFDEC70FF65C4B3FD5F907B.xml b/data/2B/61/87/2B618785FFFDEC70FF65C4B3FD5F907B.xml index 1285c93bdda..f7df7b31603 100644 --- a/data/2B/61/87/2B618785FFFDEC70FF65C4B3FD5F907B.xml +++ b/data/2B/61/87/2B618785FFFDEC70FF65C4B3FD5F907B.xml @@ -1,33 +1,34 @@ - - - -Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover + + + +Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover - - -Author + + +Author -Squires, Richard L. +Squires, Richard L. -text - - -PaleoBios +text + + +PaleoBios - -2022 - -36 + +2022 + +36 - -1 -22 + +1 +22 -journal article -10.5070/P9361043434 -0031-0298 +journal article +10.5070/P9361043434 +0031-0298 +13750227 @@ -42,7 +43,7 @@ -FIG. 3A–D +FIG. 3A–D @@ -588,7 +589,7 @@ J. - + Figure 3. See caption on the bottom of page 7. diff --git a/data/7A/6D/87/7A6D87C5FFC01E0879C64CA6FEEFFB02.xml b/data/7A/6D/87/7A6D87C5FFC01E0879C64CA6FEEFFB02.xml new file mode 100644 index 00000000000..1a95a53d3db --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFC01E0879C64CA6FEEFFB02.xml @@ -0,0 +1,86 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +CARCHARHINUS OBSCURUS +LESUEUR, 1818 + + + + + + +FIG. 41 + + + +Figure 41. + +Carcharhinus obscurus + +tooth, hypotype UCMP 218505. + + + +early Miocene + +L. columbiana +( +Clark and Arnold, 1923 +) + +is distinguished by its smaller size and being more inflated. + +Lucinoma aequizonatum +(Stearns, 1890) + +occurs in the eastern Pacific, however, it is not known from deposits older than middle Pleistocene (Powell and Ponti 2007), and is easily distinguished by its different shape and broader sculpture. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFC01E097AA24BDAFE96FB02.xml b/data/7A/6D/87/7A6D87C5FFC01E097AA24BDAFE96FB02.xml new file mode 100644 index 00000000000..8a502175e11 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFC01E097AA24BDAFE96FB02.xml @@ -0,0 +1,125 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +BALANIDAE +BRUGUIÉRE, 1797 + +(?) LEACH, 1817 + + + + + +FIG. 40 + +A very small mold and cast appear to represent a small, short, possibly smooth-sided barnacle. It is not well enough preserved to identify beyond family and that is questionable. The family goes back to the Cambrian +UCMP 218505 is a shark tooth exposed in lingual view and, being mesio-distally wide and concave right in this view, represents an upper tooth from the middle to rear of the tooth row. It is a small, asymmetrical tooth measuring 7.6 mm in crown height, 4.2 mm in crown width and 11.6 mm wide at the root. +The tooth is broadly triangular in shape, but with a concave distal inflection at the juncture of the shoulder and distal cutting edge that gives the crown a falcate appearance. The inflexion point on the mesial side between this convex cutting surface and the rootward shoulder is distinctly higher (i.e., closer to the apex) than the angle between the concave edge of the crown and the shoul- der on the distal side. The labial side of UCMP 218505 is planar, as visible in the cracked portion of the mesial shoulder and root; the exposed lingual side of the crown is gently and uniformly convex. Any labial or lingual curvature is obscured by the surrounding matrix. The relatively flattened blade is strongly serrated, including serrated shoulders tapering to a narrow apex, but with an apical tip free of serrae. The distal side has a shallow notch between the upper and lower part of the crown and the distal shoulder is slightly bowed rather than straight. The root is damaged so the state of the protuberance is difficult to determine, though by outline it would be slightly rounded and not squared-off. + +Referral to + +C. obscurus + +is supported by the overall morphology described above. In particular the more uniform size of the serrations and their diminution towards the tip on the concave side separates it from + +Hemipristis +Agassiz, 1843 + +, and the long shoulders, falcate appearance, and thinner, rounded, more concave root from the Charcarodontids. UCMP 218505 can be distinguished from other taxa within + +Carcharhinus + +by the presence of a mesial cutting edge with a slight convex curvature terminating at a distally deflected tip (Purdy et al. 2001). A higher inflexion point on the mesial side than on the distal is characteristic of + +C. obscurus + +. The smooth tip is unlike most reported upper teeth of + +C. obscurus + +which typically has fine serrations along the entire edge but still resembles this taxon most closely. The reduced serrations towards the tip result in the apical end appearing rounded rather than peaked which further allies it with the certain species of + +Carcharhinus + +, especially + +C. obscurus + +, the dusky shark and + +C. leucas + +, the bull shark. It can be distinguished from this last due to its greater asymmetry. + + + +Figure 42. + +Thunnus + +vertebra, hypotype, UCMP 218506. + + + + +Figure 43. +Cycloid teleost scale, hypotype UCMP 270032. + + + + +Carcharhinus obscurus + +has been reported from both coasts of North America ( +Applegate 1986 +, Purdy et al. 2001) and around the world in a distribution that broadly follows occurrences of extant members of the species. The serrations present on UCMP 218505 are finely preserved and the base of the tooth has clear borders; all damage appears to be post-fossilization, suggesting little transport. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFCB1E037B5A4FE9FE3DFC28.xml b/data/7A/6D/87/7A6D87C5FFCB1E037B5A4FE9FE3DFC28.xml new file mode 100644 index 00000000000..edd738f35ba --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFCB1E037B5A4FE9FE3DFC28.xml @@ -0,0 +1,64 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +BALANIDAE LEACH, 1817 + + + + + +FIG. 32 + + +A very small mold and cast appear to represent a small, short, possibly smooth-sided barnacle. It is not well enough preserved to identify beyond family level. The family goes back to the Cambrian ( +Collins and Rudkin 1981 +) and they are widespread in marine and marginal marine environments. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFCC1E047B3A4FE8FE60FB31.xml b/data/7A/6D/87/7A6D87C5FFCC1E047B3A4FE8FE60FB31.xml new file mode 100644 index 00000000000..ca0a9876692 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFCC1E047B3A4FE8FE60FB31.xml @@ -0,0 +1,67 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +MAMMALIA INDET. + + + + + +FIG. 34 + +UCMP 270019 and 270092 are partial mid-shaft fragments of what appear to be pinniped ribs. They resemble pinniped ribs in cross-sectional shape and marrow cavity area, but we cannot fully rule out small odontocete cetaceans with ribs of similar size. + +Possible candidate taxa for these elements include the smaller early imagotariine walruses, enaliarctine pinnipedimorphs, now known to survive along the +West Coast +as late as 16.6 Ma (Poust and Boessenecker 2018), and a number of smaller cetacean taxa. Due to the age uncertainty of the Tsm at this locality, the size overlap among the ribs of multiple marine mammal taxa, and the minimal anatomy preserved we feel this justifies only attribution to the +Mammalia +. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFCC1E057E6E4ED6FE48FAAA.xml b/data/7A/6D/87/7A6D87C5FFCC1E057E6E4ED6FE48FAAA.xml new file mode 100644 index 00000000000..75caaf2c2b8 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFCC1E057E6E4ED6FE48FAAA.xml @@ -0,0 +1,92 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +CETACEA +BRISSON, 1762 + + + + + +ODONTOCETI +FLOWER, 1867 + + + + + +FIGS. 35 +, +36 + + +Cetacean remains recovered from the Caldecott Tunnel Tsm unit include a partial premaxilla (UCMP 269020) among other less identifiable fragments. The descriptive anatomical terminology used here follows Mead and Fordyce (2009). UCMP 269020 is a left mid-premaxilla of a medium-sized odontocete cetacean. T-shaped in cross-section, it has a sharp lateral edge which would have been flush with the maxilla and a more rounded medial border where it would have met the opposing right premaxilla in life. The ventral process is crushed and less distinguishable from the surrounding matrix, but does expand ventrally where the palatine surface would be visible in ventral view. The porcelanous part is gently convex. The labial surface, anterolateral sulcus, and any branches of the infraorbital canal are not visible, suggesting that this fragment is from the anterior half of the rostral portion. The convex rostral surface is 32.3 mm wide and the height from the palatine surface of the premaxilla is 32.5 mm. The entire fragment is +80 mm +long. + + + +Figure 34. +Mammalian rib fragment, hypotype, UCMP 270043. + + + +The identification of UCMP 269020 as an odontocete is a strong stratigraphic indicator that the rocks of the western portal of the Caldecott Tunnel are Neogene in age and that the tunnel does not include any of the unnamed Cretaceous Cenomanian/Turonian sedimentary rocks present further west along Highway 24. Though many cetaceans are well known from the Oligocene of North America, including the oldest Odontocetes (Uhen 2010), their diversity is not high until the Miocene. Of the odontocete cetaceans known from the +West Coast +, several possess premaxillae with convex dorsal surfaces and without further morphology a generic assignment is not warranted. The specimen is relatively large: significantly bigger than Pliocene delphinids from the Purisima Formation, similar or slightly smaller than Physeteroids from the Round Mountain Silt (UCMP collections) and larger than + +Kampholophos + +which has a +26 mm +wide premaxilla (Rensberger 1969). + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFCE1E06799C4E68FAFFFBDE.xml b/data/7A/6D/87/7A6D87C5FFCE1E06799C4E68FAFFFBDE.xml new file mode 100644 index 00000000000..fed0af17dce --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFCE1E06799C4E68FAFFFBDE.xml @@ -0,0 +1,66 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +PECTINIDAE WILKES, 1810 + + + + + +FIG. 37 + + +UCMP 412480 is a mold of a small indeterminate +Pectinidae +. The cast is about +7 mm +high with 10, possibly 11, strong radial ribs, with the suggestion of finer concentric sculpture on some ribs. A possible posterior auricle is present although the impression is very faint and difficult to distinguish, and no sculpture is observable. The size and lack of diagnostic features does not allow for identification beyond the family. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFCF1E087B754975FAD9FE8A.xml b/data/7A/6D/87/7A6D87C5FFCF1E087B754975FAD9FE8A.xml new file mode 100644 index 00000000000..384fc3f2c63 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFCF1E087B754975FAD9FE8A.xml @@ -0,0 +1,114 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +CODAKIINAE KOROBOKOV, 1954 + + + + + +FIG. 38 + + +UCMP 218710, a single right valve in sandstone, is provisionally identified as + +Lucinoma + +cf. + +L. annulatum +(Reeve 1850) + +based on its shape, sculpture and possibly late Miocene age. + +Lucinoma annulatum + +occurs from the late Miocene to Holocene of the eastern Pacific but has been reported from the Oligocene in +Japan +and +Russia +(Okamoto and Sakai 1995, Kafanov and Ogasawara 2004), however these older ages seem doubtful. No other fossil + +Lucinoma +species + +are known from the late Miocene of California.However + +L. annulatum + +is very similar to and can be difficult to separate from + +Lu. acutilineata +( +Conrad, 1849 +) + +. + +Lucinoma acutilineata + +occurs in Oligocene to middle Miocene (Roth 1979, Moore 1988) rocks from Alaska south to southern California (Moore 1988) and + +L. hannibali +Clark, 1925 + +from the Oligocene to middle Miocene of the Pacific Northwest. + +Lucinoma acutilineata + +is distinguished by its lighter hinge, and longer posterior dorsal margin (Stewart in Tegland 1933, p. 116), while + +L. hannibali + +is distinguished by its longer and wider lunule, having a longer and more concave dorsal margin, a more subdued sulcus running from near the umbo to posterior margin, and sometimes more irregularly spaced comarginal sculpture. The possibly early Oligocene to ( +Collins and Rudkin 1981 +) and they are widespread in marine and marginal marine environments. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD01E187B2949FCFA53FCF0.xml b/data/7A/6D/87/7A6D87C5FFD01E187B2949FCFA53FCF0.xml new file mode 100644 index 00000000000..7cbb00c22ed --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD01E187B2949FCFA53FCF0.xml @@ -0,0 +1,113 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +YOLDIA +MÖLLER, 1842 + + + + + + +FIGS. 6 +, +7 + + +Specimens are here referred to three taxa of the +Yoldiidae +. The largest specimens have a centrally-placed umbo and strong co-marginal sculpture, characters shared with the taxon + +Yoldia + +cf. + +Y. submontereyensis +Arnold, 1908 + +( +Figs. 6 +, +7 +). + +Yoldia submontereyensis + +has been previously reported from the upper part of the Temblor Formation (Loel and Corey 1932) and unnamed Miocene sandstone near Stanford University of +Dibblee (1966) +. The second is typically smaller with the umbo placed slightly anterior of the middle of the shell, a more inflated anterior-dorsal margin, coarser co-marginal sculpture, and a truncated and inclined posterior end. Specimens with these characters are here identified as + +Yoldia + +cf. + +Y.supramontereyensis +Arnold, 1908 + +( +Fig. 8 +). This species occurs in +California +from the Hambre Sandstone ( +Hall 1958 +), “Monterey” Formation (Lutz 1951, +Addicott et al. 1978 +), Oursan and San Ramon sandstones (Weaver 1953), Sobrante Sandstone (Lutz 1951), Temblor Formation (Stewart 1946), and unnamed sandstone near Stanford University of +Dibblee (1966) +. The last species is only represented by a single partially covered specimen that cannot be identified to either genus or species with confidence and is referred here to + +Yoldia + +? sp. indeterminate ( +Fig. 9 +). It is easily distinguished from the previous two species by its much finer and more numerous co-marginal sculpture. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD11E1A7B264BC6FC98FEA9.xml b/data/7A/6D/87/7A6D87C5FFD11E1A7B264BC6FC98FEA9.xml new file mode 100644 index 00000000000..9171cf60856 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD11E1A7B264BC6FC98FEA9.xml @@ -0,0 +1,107 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +LIMA +BRUGUIÉRE, 1797 + + + + + + +FIG. 11 + + +A single cast in sediment that measures about +8 mm +high is questionably referred to the genus + +Lima + +based on its overall shape and broad, square radial ribs which curve toward the posterior end. The mold recovered is small with 13 broad, ribs slightly curving to the posterior end, that are square-sided with interspaces that are slightly less wide than the corresponding rib. The overall shape and sculpture is indicative of the genus + +Lima +, + +which is known in +California +from only two species: + +Lima + +cf. + +Li. caribaea +(d’Orbigny, 1853) + +from the late Miocene part of the “Imperial” Formation north of Palm Springs, Riverside County (Powell 1986) and + +Li. vedderi +Moore, 1977 + +, which occurs in the Monterey Formation (Moore 1977), the Santa Margarita Sandstone ( +Addicott et al. 1978 +), and unnamed Miocene strata on San Clemente Island, Los Angeles County, southern +California +(Moore 1977). It is easily distinguished from both these species by lacking sculpture on the ribs and its small size. + +Miodontiscus prolongatus +Carpenter, 1864 + +( +Carditidae de Lamarck, 1809 +) somewhat resembles the cast, however; the shell shape is slightly different and + +Mi. prograongatus + +does not have as many ribs as the Caldecott Tunnel specimen. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD21E1A7B584CE6FDE5FD6C.xml b/data/7A/6D/87/7A6D87C5FFD21E1A7B584CE6FDE5FD6C.xml new file mode 100644 index 00000000000..efe3c26f7d6 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD21E1A7B584CE6FDE5FD6C.xml @@ -0,0 +1,71 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +CRENELLA +BROWN, 1827 + + + + + + +FIG. 12 + + +A single small cast is questionably identified as the genus + +Crenella + +based on its shape, size, and radial scultpure indicitative of the genus. No extinct species of this genus have been reported from +California +and the oldest recorded fosssil occurrence of the modern species is from the Pliocene (Moore 1983). This specimen likely represents a new species but without better specimens it does not warrant naming at this time. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD21E1A7B664E65FA9FFEA9.xml b/data/7A/6D/87/7A6D87C5FFD21E1A7B664E65FA9FFEA9.xml new file mode 100644 index 00000000000..46e0816634b --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD21E1A7B664E65FA9FFEA9.xml @@ -0,0 +1,73 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +PROPEAMUSSIIDAE +ABBOTT, 1954 + + + + + + +FIG. 13 + + +Two partial, mostly decorticated, possibly right, valves of an indeterminate +Propeamussiidae +are represented in the Tsm Caldecott Tunnel fauna. On first glance they appear to have interior radial ribs as in the genus + +Propeamussium + +; however, they do not originate at the umbo and therefore are interpreted as cracks formed in the shell during or after deposition. The family is distributed worldwide and according to Waller (1971) occurs in water depths from 275 to +2,740 m +. It ranges in age from the Jurassic to Holocene (Moore 1984). + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD21E1B79854E30FDBFFA16.xml b/data/7A/6D/87/7A6D87C5FFD21E1B79854E30FDBFFA16.xml new file mode 100644 index 00000000000..46b424bab79 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD21E1B79854E30FDBFFA16.xml @@ -0,0 +1,91 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +CODAKIINAE KOROBOKOV, 1954 + + + + + +FIG. 14 + + +UCMP 218741 is a single specimen that may represent a new genus and species within the subfamily +Codakiinae +. The combination of its diamond-shaped outline with slightly inflated valve, and a strong posterior radial sulcus that extends to the posterior ventral margin serve to separate this species from +West Coast +species of + +Lucinoma + +, although these features could be an artifact of preservation. Sculpture consists of numerous, slightly irregularly-spaced, co-marginal lamellae, with wide to moderate interspaces. The lunule, ligament, and escutcheon were not observed. This species appears most similar to the western Atlantic species + +L. atlantis +(McLean, 1936) + +, + +L. “atlantis +” + +of Taylor and Glover (2017, figs.39–43) and +L +. sp. of Taylor and Glover (2017, fig. 51–52) differing from them in being taller than wide and in having a pointed ventral margin. This species is also somewhat similar to + +Scabrilucina +(Taylor and Glover 2013) + +, a modern genus from the southwest Pacific but lacks an anterior sulcus and the ventral margin is angular not rounded. It is here referred to aff. + +Lucinoma + +until additional specimens can be found and described in detail. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD31E1B7B7C48AAFB04FC23.xml b/data/7A/6D/87/7A6D87C5FFD31E1B7B7C48AAFB04FC23.xml new file mode 100644 index 00000000000..1a2c874cf13 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD31E1B7B7C48AAFB04FC23.xml @@ -0,0 +1,88 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +MYRTEINAE +CHAVAN, 1969 + +(?) + + + + + +FIG. 15 + + +The second lucinid in the Tsm Caldecott Tunnel fauna is similar to the previous one in having widely-spaced co-marginal lamellae, but differs in its low, broad umbo, wide, oval shape, and weak anterior dorsal sulcus. This lucinid is very similar in shape to genus + +Tehamatea + +recently described by Kiel (2013). However, + +Tehamatea + +has a more prominent umbo and co-marginal lamellae only on its early shell after which the sculpture becomes irregular co-marginal growth lines. Also + +Tehamatea + +is only known from the Late Jurassic to Early Cretaceous of central +California +(Kiel 2013). Interestingly, + +Tehamatea + +is also found in ancient methane seeps. We assign this species to aff. + +Tehamatea + +until additional specimens can be found and studied in depth. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD31E1C799B4E80FA67FF57.xml b/data/7A/6D/87/7A6D87C5FFD31E1C799B4E80FA67FF57.xml new file mode 100644 index 00000000000..0d887ea274a --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD31E1C799B4E80FA67FF57.xml @@ -0,0 +1,111 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +CARDITIDAE +FLEMING, 1828 + + + + + + +FIG. 16 + + +One indeterminate + +Cyclocardia + +has been recovered from the Caldecott Tunnel. It shows the exterior of a right(?) valve that has been crushed but appears to show greater than 16 broadly rounded radial ribs with slightly narrower shallow interspaces and appears to be crossed by fine co-marginal growth lines. This specimen is about 8.7 mm long and 7.5 mm high. + + +Only two + +Cyclocardia + +have been reported from the Miocene of +California +, + +Cy. monilicosta +( +Gabb, 1861 +) + +[= + +Cy.occidentalis +( +Conrad, 1855 +) + +] and + +Cy. californica +( +Dall, 1903 +) + +. According to its original description + +Cy. monilicosta + +was described from the Santa Barbara area and questionably referred to the Miocene. The Santa Barbara Formation, from which + +Cy. monilicosta + +was likely collected, is middle Pleistocene in age (Minor et al. 2002, 2009), although in the past the Santa Barbara Formation has been referred to rocks of Miocene to Pleistocene age ( +Gabb 1861 +, +Arnold and Arnold 1902 +, Moore 1983). Powell et al. (2010, p. 23, footnote) noted a single collection of Pliocene age from the Santa Barbara area and Minor et al. (2002, 2009) reported two geologic units of questionable Pliocene age in the sea cliffs below More Mesa just south of UC Santa Barbara at Goleta, so Pliocene but no Miocene geologic units occur in the area. Although it is uncertain which world oceans and is of no ecological significance here. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD41E1C79C44C6CFDBEF9E0.xml b/data/7A/6D/87/7A6D87C5FFD41E1C79C44C6CFDBEF9E0.xml new file mode 100644 index 00000000000..dbbade7b311 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD41E1C79C44C6CFDBEF9E0.xml @@ -0,0 +1,153 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +VESICOMYIDAE DALL AND STIMPSON, 1901 + + + + + +FIGS. 17–19 + + +Three incomplete, poorly preserved specimens are assigned to +Vesicomyidae +, genus and species indeterminate based on their shell outline and placement of the hinge towards the anterior end of the shell. Overall they are similar in outline to + +Pliocardia + +. + +Pliocardia + +is represented by two modern species in the northern eastern Pacific, one provisionally, “ + +Pl.” stearnsii +( +Dall, 1895 +) + +and “ + +Pl.” krylovata +Martin and Goffredi, 2011 + +from +Costa Rica +. W.H. +Dall (1896 +, p. 17) cites W.H. +Dall (1895 +, p. 693) as geologic unit + +Cy. monilicosta + +was described from, it was most likely the Santa Barbara Formation where it occurs abundantly. Given this there is no data supporting a Miocene age for + +Cy. monilicosta + +, which is abundant in other Pliocene and Pleistocene formations in California (Moore 1992). + + + +Figure 16. + +Cyclocardia +sp. + +Indeterminate from the Tsm Caldecott Tunnel fauna, right valve(?). Hypotype from UCMP locality IP13001, UCMP 410563. + + + +The other reported +California +Miocene + +Cyclocardia +, +Cy. californica + +has been reported from the late Miocene to Pleistocene of central and southern +California +(Moore 1992). In the Pacific northwest ( +Oregon +and +Washington +) + +Cy. hannibali +( +Clark, 1925 +) + +and + +Cy. subtenta +( +Conrad, 1849 +) + +have been reported from the Miocene ( +Addicott 1976 +, Moore 1976). Also, +Allison and Marincovich (1981) +provisionally (cf.) reported five western Pacific + +Cyclocardia + +from the late Oligocene to early Miocene Narrow Cape Formation on Sitkinak Island, +Alaska +. Unfortunately, the Caldecott Tunnel specimen is not well enough preserved for a detailed comparison with any of the Miocene western North American + +Cyclocardia + +. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD51E1D798B4E82FB51F900.xml b/data/7A/6D/87/7A6D87C5FFD51E1D798B4E82FB51F900.xml new file mode 100644 index 00000000000..0eac0ad8456 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD51E1D798B4E82FB51F900.xml @@ -0,0 +1,71 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + +VENERIDAE RAFINESQUE, 1815 + + + + + +FIG. 21 + + +UCMP 410418 is a single small specimen that shows an overall oval shell outline with the umbo positioned at about a third of the shell’s length. The umbo overhangs the dorso-anterior margin which is short and steeply inclined. The dorso-posterior margin broadly arches away from the umbo and is partially hidden. The ventral margin is broadly rounded from the anterior to the posterior. A fragment of the shell is present posterior of the umbo and appears moderately thick with strong concentric ribs. The cast shows that these ribs were co-marginal and moderately evenly spaced. These features and the shell outline matches well with some members of the family +Veneridae +, in particular the genus + +Clementia +Gray, 1842 + +, which is well known from the Miocene and possibly into the Pliocene of the +West Coast +(Woodring 1927). However, the specimen is not well enough preserved for a precise identification. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD51E1D7B344897FA8AFC4E.xml b/data/7A/6D/87/7A6D87C5FFD51E1D7B344897FA8AFC4E.xml new file mode 100644 index 00000000000..e725a6a56e6 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD51E1D7B344897FA8AFC4E.xml @@ -0,0 +1,88 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +SPISULA +GRAY, 1837 + + + + + + +FIG. 20 + + +UCMP 410439 is provisionally referred to + +Spisula + +aff. + +Spi. eugenensis +( +Clark, 1925 +) + +as it closely resembles this species in general outline. + +Spisula eugenensis + +from the Oligocene Eugene Formation in +Oregon +figured by +Hickman (1969 +, pl. 4, fig. 13), with its broadly rounded, centrally-placed beak and moderately sloping anterior and posterior dorsal margins from the umbo, is nearly identical to the specimen figured here. In addition, the Tsm Caldecott Tunnel specimen show a slight anterior and posterior umbonal ridge that match well with + +Spi. eugenensis + +. The Eugene Formation (Oligocene) specimens and the Tsm Caldecott Tunnel (middle Miocene) specimen are very similar but are considered possibly distinct because of the difference in age. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFD51E1E79F94A78FACAFF57.xml b/data/7A/6D/87/7A6D87C5FFD51E1E79F94A78FACAFF57.xml new file mode 100644 index 00000000000..774f839eaa8 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFD51E1E79F94A78FACAFF57.xml @@ -0,0 +1,74 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +BRUCLARKIA +TRASK IN STEWART 1926 + +(1927) + + + + + +FIG. 22 + + +The genus + +Bruclarkia + +is endemic to the Pacific northwest from +Alaska +to +California +occurring in rocks of and therefore cannot be identified to species. + + + + \ No newline at end of file diff --git a/data/7A/6D/87/7A6D87C5FFDE1E1779814E4EFE76F921.xml b/data/7A/6D/87/7A6D87C5FFDE1E1779814E4EFE76F921.xml new file mode 100644 index 00000000000..0a4fddd4497 --- /dev/null +++ b/data/7A/6D/87/7A6D87C5FFDE1E1779814E4EFE76F921.xml @@ -0,0 +1,164 @@ + + + +Miocene marine macropaleontology of the fourth bore Caldecott Tunnel excavation, Berkeley Hills, Oakland, California, USA + + + +Author + +Charles L. Powell, Ii + + + +Author + +Clites, Erica C. + + + +Author + +Poust, Ashley W. + +text + + +PaleoBios + + +2022 + +36 + + +1 +34 + + + +journal article +10.5070/P9361044567 +0031-0298 +EFED8DE6-E976-43A5-BD7B-F478EF0B6FF9 + + + + + + +ACHARAX JOHNSONI +DALL, 1891 + + + + + + +FIG. 4 + + +The single, double-valved specimen, UCMP 410421, compares well with + +Acharax johnsoni + +. This specimen has numerous, shallow, radial ribs and interspaces, which occur from the anterior end past the middle of the shell, characteristics shared by + +Ach. johnsoni +. + +The poor preservation and single specimen make precise identification impossible. Fossil + +Ach. johnsoni + +are rare in the eastern Pacific occurring only in the Pliocene (Woodring 1938; Roth, 1979) from northern and southern California, while in the western Pacific it has been reported from the Eocene to Pliocene (O'Hara and Nemoto 1988, Nobuhara and Tanaka 1993, Kafanov and Ogasawara 2003, 2004). +Coan et al. (2000) +list the modern range of + +Ach. johnsoni + +as from Sitka, Alaska, south through to the +Isla +de Afuera, +Peru +in water depths from 400 to +4,100 m +. + + +The family +Solemyidae +favors reduced oxygen and high organic content environments, and harbors chemoautotrophic bacteria in their gill filaments to obtain nutrition. In the northeastern Pacific they are typically found in basins on the continental shelf and nearshore where there is an accumulation of plant debris ( +Coan et al. 2000 +). It is represented by two genera off the coast of California and the northeast Pacific, + +Acharax + +and + +Solemya +, + +with three modern species and three fossil species. Modern species include + +Solemya (So.) reidi +Bernard, 1980 + +which occurs from Vancouver Island, +British Columbia +, +Canada +, south to San Diego, California at water depths between 40 and +600 m +( +Coan et al. 2000 +), + +So. (Petrasma) valvulus +( +Carpenter,1864 +) + +which occurs from Monterey Bay, California south to +Jalisco +, +Mexico +, including the Golfo de California at water depths between the intertidal zone and +360 m +, and + +Ach. johnsoni + +occurring from Sitka, Alaska through the Golfo de California south to off +Lima +, +Peru +at water depths between 100 and +5,379 m +( +Coan and Valentich-Scott 2012 +). In addition to the modern species there are three fossil species in the Pacific northwest: + +Ach. dalli +( +Clark, 1925 +) + +from the lower Miocene of Washington ( +Addicott 1976 +), + +Ach. ventricosa +( +Conrad 1849 +) + +from the middle Miocene to lower Pleistocene of Washington south to northern California (Moore 1963, +Addicott 1976 +), and +Ach. willapaensis +(Weaver, 1942) that occurs from the upper Eocene to lower Miocene of Washington (Weaver 1942). + + + + \ No newline at end of file