191 lines
24 KiB
XML
191 lines
24 KiB
XML
<document id="13993500078EE97391E017E2F42F126D" ID-DOI="10.5070/P9401462457" ID-ISSN="0031-0298" ID-Zenodo-Dep="10913330" IM.bibliography_approvedBy="carolina" IM.illustrations_approvedBy="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatments_approvedBy="carolina" checkinTime="1712167746961" checkinUser="felipe" docAuthor="Wheeler, Elisabeth A., Manchester, Steven R. & Baas, Pieter" docDate="2023" docId="038AF505A313960D54D1FE34FAD69EE3" docLanguage="en" docName="PaleoBios.40.14.1-55.pdf" docOrigin="PaleoBios 40 (14)" docSource="http://dx.doi.org/10.5070/p9401462457" docStyle="DocumentStyle:76F55B8832C4952BA7DD61B33E1F0E81.3:PaleoBios.2023-.journal_article" docStyleId="76F55B8832C4952BA7DD61B33E1F0E81" docStyleName="PaleoBios.2023-.journal_article" docStyleVersion="3" docTitle="Malpighiales JUSS. EX BERCHT. & J. PRESL 1820" docType="treatment" docVersion="1" lastPageNumber="43" masterDocId="FFB38D7DA33F9621547BFFC0FFD49B4F" masterDocTitle="A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA" masterLastPageNumber="55" masterPageNumber="1" pageNumber="43" updateTime="1728052592909" updateUser="carolina" zenodo-license-document="CC-BY-NC-SA-4.0">
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<mods:title id="D400D7A79DF3D196BC4F88B2C7ADBFD6">A late Eocene wood assemblage from the Crooked River Basin, Oregon, USA</mods:title>
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<mods:namePart id="019FCF9E9BECD12A8F969085F9C3C984">Wheeler, Elisabeth A.</mods:namePart>
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<mods:namePart id="A3F4F6A7C921583FB22CEFA91FBA188E">Manchester, Steven R.</mods:namePart>
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<mods:namePart id="0B781327E1BB6291F217C1ED0AED4C45">Baas, Pieter</mods:namePart>
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<mods:title id="E8B575D1FB0D25A7000144E854051AFE">PaleoBios</mods:title>
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<mods:part id="C99DFD1E5ADFBDD028BF761C1ABCB2A8">
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<mods:date id="4C014CC83920FDCE5EC8A6FD81F0C3B0">2023</mods:date>
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<mods:number id="0EDF649EAC0EB55E79F4B890588A753E">2023-11-01</mods:number>
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<mods:number id="2F7B8AC856C6B5717F2394D5697985E4">14</mods:number>
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<mods:identifier id="B276E737B880E92F63441376242EA5A1" type="ISSN">0031-0298</mods:identifier>
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<treatment id="038AF505A313960D54D1FE34FAD69EE3" LSID="urn:lsid:plazi:treatment:038AF505A313960D54D1FE34FAD69EE3" httpUri="http://treatment.plazi.org/id/038AF505A313960D54D1FE34FAD69EE3" lastPageNumber="43" pageId="44" pageNumber="43">
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<subSubSection id="C3391798A313960D54D1FE34FD329943" box="[170,742,500,524]" pageId="44" pageNumber="43" type="nomenclature">
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<paragraph id="8B9C4413A313960D54D1FE34FD329943" blockId="44.[170,742,500,524]" box="[170,742,500,524]" pageId="44" pageNumber="43">
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?
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<taxonomicName id="4C233F90A313960D54C0FE34FD329943" ID-CoL="MLP" ID-ENA="3646" authority="JUSS. EX BERCHT. & J. PRESL, 1820" authorityName="JUSS. EX BERCHT. & J. PRESL" authorityYear="1820" box="[187,742,500,524]" class="Magnoliopsida" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="order">MALPIGHIALES JUSS. EX BERCHT. & J. PRESL, 1820</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3391798A313960D55F7FDDEFDEC9EF6" pageId="44" pageNumber="43" type="description">
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<paragraph id="8B9C4413A313960D55F7FDDEFDD09979" blockId="44.[396,516,542,566]" box="[396,516,542,566]" pageId="44" pageNumber="43">
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<figureCitation id="13185896A313960D55F7FDDEFDD09979" box="[396,516,542,566]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">FIG. 20A–L</figureCitation>
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBFD92FE2199DF" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">
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<emphasis id="B9579801A313960D54EBFD92FE9F9923" bold="true" box="[144,331,594,620]" pageId="44" pageNumber="43">Description—</emphasis>
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Growth rings present, marked by radially narrow fibers (
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<figureCitation id="13185896A313960D5526FDB5FE3399DF" box="[349,487,629,656]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20A, B</figureCitation>
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).
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBFD59FCF498BF" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">
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Wood diffuse-porous; solitary vessels rare, 8% solitary vessels, vessels predominantly in radial multiples of 2–6 (-9) (
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<figureCitation id="13185896A313960D549DFD1FFEA799B6" box="[230,371,735,761]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20A–C</figureCitation>
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); mean tangential diameter 52 µm (
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<collectionCode id="ED32DCD6A313960D5402FCC2FF779853" box="[121,163,770,796]" country="USA" lsid="urn:lsid:biocol.org:col:15659" name="San Diego Natural History Museum" pageId="44" pageNumber="43" type="Herbarium">SD</collectionCode>
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=11), range 26–76 µm; 90–121 vessels per mm
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<superScript id="7C56E95BA313960D56ADFCC2FD35985A" attach="left" box="[726,737,770,789]" fontSize="8" pageId="44" pageNumber="43">2</superScript>
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. Perforation plates simple and scalariform with fewer than 10 bars (
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<figureCitation id="13185896A313960D54A3FC89FEB4982C" box="[216,352,841,867]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20D–F</figureCitation>
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); intervessel pits alternate (
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<figureCitation id="13185896A313960D56D0FC89FCC7982C" box="[683,787,841,867]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20G</figureCitation>
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), horizontal diameter 6–8–10 µm. Vessel-ray parenchyma pits similar in size to intervessel pits, generally oval in outline, with reduced borders (
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<figureCitation id="13185896A313960D559FFC72FD9B9883" box="[484,591,946,972]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20H</figureCitation>
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). Vessel elements short, <350 µm. Thin-walled tyloses abundant (
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<figureCitation id="13185896A313960D56CAFC15FCC798BF" box="[689,787,981,1008]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20I</figureCitation>
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).
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBFC39FEA09F79" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">Fibers thin- to thick-walled, apparently non-septate, pitting not observed.</paragraph>
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<paragraph id="8B9C4413A313960D54EBFBFFFCC79F33" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">Axial parenchyma not obvious in transverse sections, but visible in longitudinal section, strands of 4–8 cells.</paragraph>
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<paragraph id="8B9C4413A313960D54EBFB46FE739E45" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">
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Rays 1–2 seriate, mostly uniseriate (
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<figureCitation id="13185896A313960D5637FB45FD199FEF" box="[588,717,1157,1184]" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20J, K</figureCitation>
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); average biseriate ray height 227 (
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<collectionCode id="ED32DCD6A313960D55A6FB68FDD19F8C" box="[477,517,1192,1219]" country="USA" lsid="urn:lsid:biocol.org:col:15659" name="San Diego Natural History Museum" pageId="44" pageNumber="43" type="Herbarium">SD</collectionCode>
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=52) µm, 131–315 µm. Rays composed primarily of procumbent cells (
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<figureCitation id="13185896A313960D56C1FB0CFF519E45" captionStart="Figure 20" captionStartId="45.[141,216,1905,1929]" captionTargetBox="[149,1481,193,1878]" captionTargetId="figure-23@45.[149,1481,193,1884]" captionTargetPageId="45" captionText="Figure 20. Caption on pg. 45." figureDoi="http://doi.org/10.5281/zenodo.10913370" httpUri="https://zenodo.org/record/10913370/files/figure.png" pageId="44" pageNumber="43">Fig. 20I, L</figureCitation>
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); 12–15 per linear mm.
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBFAD2FF1E9E00" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">Storied structure, radial canals, and oil/mucilage cells absent.</paragraph>
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<paragraph id="8B9C4413A313960D54EBFA98FEEF9ED9" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">
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<emphasis id="B9579801A313960D54EBFA98FEE39E3D" bold="true" box="[144,311,1368,1394]" pageId="44" pageNumber="43">Specimen—</emphasis>
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<collectionCode id="ED32DCD6A313960D5543FA99FE889E3C" box="[312,348,1369,1395]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="44" pageNumber="43" type="Museum">UF</collectionCode>
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278-84892, estimated maximum diameter
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<quantity id="4CDBE9F6A313960D5493FABCFEE39ED9" box="[232,311,1404,1430]" metricMagnitude="-1" metricUnit="m" metricValue="1.0" pageId="44" pageNumber="43" unit="cm" value="10.0">10 cm</quantity>
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.
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBFA5FFDEC9EF6" blockId="44.[112,801,594,1958]" box="[144,568,1439,1465]" pageId="44" pageNumber="43">
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<emphasis id="B9579801A313960D54EBFA5FFE939EF6" bold="true" box="[144,327,1439,1465]" pageId="44" pageNumber="43">Occurrence—</emphasis>
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Dietz Hill (
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<collectionCode id="ED32DCD6A313960D55B1FA5FFE249EF6" box="[458,496,1439,1465]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="44" pageNumber="43" type="Museum">UF</collectionCode>
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278).
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</paragraph>
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</subSubSection>
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<subSubSection id="C3391798A313960D54EBFA02FB139819" pageId="44" pageNumber="43" type="discussion">
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<paragraph id="8B9C4413A313960D54EBFA02FCF49DC3" blockId="44.[112,801,594,1958]" pageId="44" pageNumber="43">
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<emphasis id="B9579801A313960D54EBFA02FEE89E93" bold="true" box="[144,316,1474,1500]" pageId="44" pageNumber="43">Comments—</emphasis>
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Specimen
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<collectionCode id="ED32DCD6A313960D55C0FA03FE0A9E92" box="[443,478,1475,1501]" country="USA" lsid="urn:lsid:biocol.org:col:34858" name="Florida Museum of Natural History- Zoology, Paleontology and Paleobotany" pageId="44" pageNumber="43" type="Museum">UF</collectionCode>
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278-84892 was problematic because it was highly compressed. The longitudinal sections provided a combination of radial and tangential views, measuring the quantitative vessel features and rays per mm were affected by the compression. The tyloses made it difficult to measure vessel element lengths.
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</paragraph>
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<paragraph id="8B9C4413A313960D54EBF955FB139819" blockId="44.[112,801,594,1958]" lastBlockId="44.[831,1520,194,1453]" pageId="44" pageNumber="43">
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<emphasis id="B9579801A313960D54EBF955FD2C9DFF" bold="true" box="[144,760,1685,1712]" pageId="44" pageNumber="43">Comparison with modern and fossil woods—</emphasis>
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We searched InsideWood’s modern and fossil wood database multiple times using various combinations of features, with almost all searches including wood diffuse-porous (5p), vessels in radial multiples of four or more common (10p), perforation plates simple (13p), intervessel pits alternate and not minute (22p 24a), fibers non-septate (66p), narrow rays (searching for rays 1–3 seriate - 97p or rays uniseriate - 96p). Although scalariform perforation plates are rare, we used their presence (14p). Most searches returned
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<taxonomicName id="4C233F90A313960D5053FEC9FA7C9A6C" authority="Kuprian (1962)" authorityName="Kuprian" authorityYear="1962" box="[1064,1448,264,293]" class="Magnoliopsida" family="Nothofagaceae" kingdom="Plantae" order="Fagales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">
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<emphasis id="B9579801A313960D5053FEC9FB349A6A" box="[1064,1248,265,293]" italics="true" pageId="44" pageNumber="43">Nothofagaceae</emphasis>
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Kuprian (1962)
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</taxonomicName>
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(
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<taxonomicName id="4C233F90A313960D51CCFEC9FCA69A08" class="Magnoliopsida" kingdom="Plantae" order="Fagales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="order">Fagales</taxonomicName>
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), which is an unlikely match because no macro- or microfossils of this Southern Hemisphere family have ever been found in the Northern Hemisphere (
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<bibRefCitation id="EFB239E2A313960D51ECFEB2FC119AFF" author="Pujana, R. R. & D. A. Fernandez & C. Panti & N. Caviglia" pageId="44" pageNumber="43" pagination="1 - 20" refId="ref38596" refString="Pujana, R. R., D. A. Fernandez, C. Panti, and N. Caviglia. 2021. The micro- and megafossil record of Nothofagaceae in South America. Botanical Journal of the Linnaean Society 196: 1 - 20." type="journal article" year="2021">Pujana et al. 2021</bibRefCitation>
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). Members of the
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<taxonomicName id="4C233F90A313960D50DAFE55FA7F9AFF" authority="sensu APG" authorityName="APG" box="[1185,1451,405,432]" class="Magnoliopsida" family="Salicaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Salicaceae sensu APG</taxonomicName>
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were also returned as well as other malpighialean families (e.g.,
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<taxonomicName id="4C233F90A313960D5744FE1CFB5D9AB8" authority="Harms, 1925" authorityName="Harms" authorityYear="1925" box="[831,1161,476,503]" class="Magnoliopsida" family="Achariaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Achariaceae Harms, 1925</taxonomicName>
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;
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<taxonomicName id="4C233F90A313960D50E3FE1CFA3E9AB9" authority="Juss., 1789" authorityName="Juss." authorityYear="1789" box="[1176,1514,476,502]" class="Magnoliopsida" family="Euphorbiaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Euphorbiaceae Juss., 1789</taxonomicName>
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;
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<taxonomicName id="4C233F90A313960D5744FDC0FBB49955" authority="Klotzch, 1859" authorityName="Klotzch" authorityYear="1859" box="[831,1120,511,538]" class="Magnoliopsida" family="Peraceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Peraceae Klotzch, 1859</taxonomicName>
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;
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<taxonomicName id="4C233F90A313960D5011FE3FFA3F9956" authority="Martinov, 1820" authorityName="Martinov" authorityYear="1820" box="[1130,1515,511,537]" class="Magnoliopsida" family="Phyllanthaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Phyllanthaceae Martinov, 1820</taxonomicName>
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;
|
||
<taxonomicName id="4C233F90A313960D5744FDE2FB419973" authority="Endl., 1841" authorityName="Endl." authorityYear="1841" box="[831,1173,546,572]" class="Magnoliopsida" family="Putranjivaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Putranjivaceae Endl., 1841</taxonomicName>
|
||
). Results of other searches included
|
||
<taxonomicName id="4C233F90A313960D57CAFD85FB66992F" authority="Juss." authorityName="Juss." box="[945,1202,581,608]" class="Magnoliopsida" family="Elaeocarpaceae" kingdom="Plantae" order="Oxalidales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Elaeocarpaceae Juss.</taxonomicName>
|
||
(1816,
|
||
<taxonomicName id="4C233F90A313960D5174FD85FBF199CC" authority="Bercht. and J. Presl, 1820" authorityName="Bercht. and J. Presl" authorityYear="1820" class="Magnoliopsida" kingdom="Plantae" order="Oxalidales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="order">Oxalidales Bercht. and J. Presl, 1820</taxonomicName>
|
||
). No fossil wood in the InsideWood database was a good match. In spite of reviewing the family descriptions in
|
||
<bibRefCitation id="EFB239E2A313960D501BFD6FFA629985" author="Metcalfe, C. R. & L. Chalk" box="[1120,1462,687,714]" pageId="44" pageNumber="43" refId="ref37662" refString="Metcalfe, C. R. and L. Chalk. 1950. Anatomy of the Dicotyledons. 2 vols. Clarendon Press, Oxford, U. K., 1500 pp." type="book" year="1950">Metcalfe and Chalk (1950)</bibRefCitation>
|
||
and reviewing the literature on the aforementioned families, at this time, we are not able to assign it to family. We suggest it belongs to the
|
||
<taxonomicName id="4C233F90A313960D50FBFCD9FA5E987C" authority="Martius" authorityName="Martius" box="[1152,1418,793,819]" class="Magnoliopsida" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="order">Malpighiales Martius</taxonomicName>
|
||
, but we cannot confirm that placement.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C3391798A313960D5724FC9EFAD69EE3" pageId="44" pageNumber="43" type="description">
|
||
<paragraph id="8B9C4413A313960D5724FC9EFAD69EE3" blockId="44.[831,1520,194,1453]" pageId="44" pageNumber="43">
|
||
<taxonomicName id="4C233F90A313960D5724FC9EFC149835" box="[863,960,862,890]" class="Magnoliopsida" family="Salicaceae" genus="Populus" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B9579801A313960D5724FC9EFC149835" box="[863,960,862,890]" italics="true" pageId="44" pageNumber="43">Populus</emphasis>
|
||
</taxonomicName>
|
||
<collectionCode id="ED32DCD6A313960D57BEFCA0FC039835" box="[965,983,864,890]" country="Netherlands" lsid="urn:lsid:biocol.org:col:15678" name="Nationaal Herbarium Nederland, Leiden University branch" pageId="44" pageNumber="43" type="Herbarium">L</collectionCode>
|
||
. (1753) and
|
||
<taxonomicName id="4C233F90A313960D500AFC9FFB7F9834" box="[1137,1195,863,891]" class="Magnoliopsida" family="Salicaceae" genus="Salix" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B9579801A313960D500AFC9FFB7F9834" box="[1137,1195,863,891]" italics="true" pageId="44" pageNumber="43">Salix</emphasis>
|
||
</taxonomicName>
|
||
<collectionCode id="ED32DCD6A313960D50CAFCA0FB179835" box="[1201,1219,864,890]" country="Netherlands" lsid="urn:lsid:biocol.org:col:15678" name="Nationaal Herbarium Nederland, Leiden University branch" pageId="44" pageNumber="43" type="Herbarium">L</collectionCode>
|
||
. (1753) (
|
||
<taxonomicName id="4C233F90A313960D514AFC9FFC1998D2" authority="Mirbel (1815))" authorityName="Mirbel" authorityYear="1815" class="Magnoliopsida" family="Salicaceae" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="family">Salicaceae Mirbel (1815))</taxonomicName>
|
||
are common in the compression floras of the
|
||
<collectingCountry id="F3340483A313960D5744FC66FC52988F" box="[831,902,934,960]" name="United States of America" pageId="44" pageNumber="43">U.S.A.</collectingCountry>
|
||
, although woods of those genera are rare, which is probably because they readily decay making them less likely to enter the fossil record. Initially, we thought this sample might be
|
||
<taxonomicName id="4C233F90A313960D5074FBCEFBA49F65" box="[1039,1136,1038,1066]" class="Magnoliopsida" family="Salicaceae" genus="Populus" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B9579801A313960D5074FBCEFBA49F65" box="[1039,1136,1038,1066]" italics="true" pageId="44" pageNumber="43">Populus</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<taxonomicName id="4C233F90A313960D50EEFBCFFB1B9F64" box="[1173,1231,1039,1067]" class="Magnoliopsida" family="Salicaceae" genus="Salix" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B9579801A313960D50EEFBCFFB1B9F64" box="[1173,1231,1039,1067]" italics="true" pageId="44" pageNumber="43">Salix</emphasis>
|
||
</taxonomicName>
|
||
because the transverse section of this diffuse-porous wood shows narrow and abundant vessels that are commonly in radial multiples, abundant narrow rays, and axial parenchyma looked to be rare. However, this first impression was incorrect because this wood has some scalariform perforation plates, a feature that does not occur in present-day
|
||
<taxonomicName id="4C233F90A313960D51CEFB23FA3B9FB0" box="[1461,1519,1251,1279]" class="Magnoliopsida" family="Salicaceae" genus="Salix" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">
|
||
<emphasis id="B9579801A313960D51CEFB23FA3B9FB0" box="[1461,1519,1251,1279]" italics="true" pageId="44" pageNumber="43">Salix</emphasis>
|
||
</taxonomicName>
|
||
or
|
||
<emphasis id="B9579801A313960D571FFAC4FC1F9E6F" box="[868,971,1284,1312]" italics="true" pageId="44" pageNumber="43">
|
||
<taxonomicName id="4C233F90A313960D571FFAC4FC139E6F" box="[868,967,1284,1312]" class="Magnoliopsida" family="Salicaceae" genus="Populus" kingdom="Plantae" order="Malpighiales" pageId="44" pageNumber="43" phylum="Tracheophyta" rank="genus">Populus</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
Moreover, strands of axial parenchyma are visible in the longitudinal sections. This sample serves as a cautionary tale that generally wood identification needs to be based on microscopic examination of longitudinal sections, not just transverse section.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |