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<mods:title id="BCE2D8DA8D6D363DE1F2229868AC8BC4">Revision of F. R. C. Reeds Ordovician trilobite types from Myanmar (Burma) and western Yunnan Province, China</mods:title>
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<mods:namePart id="DC778FE7081485F766DBB33C1B4BA2DE">Wernette, Shelly J.</mods:namePart>
<mods:affiliation id="70DE42103F640A4BEFC5E4ADACCAFA0D">Department of Earth and Planetary Sciences, University of California, Riverside, CA 92521, USA. &amp; Department of Geography and Environmental Studies, Texas State University, San Marcos, TX 78666, USA</mods:affiliation>
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<treatment id="03CB87846E4F1D12FF3AC181492CF2E6" ID-DOI="http://doi.org/10.5281/zenodo.6816303" ID-GBIF-Taxon="197214849" ID-Zenodo-Dep="6816303" LSID="urn:lsid:plazi:treatment:03CB87846E4F1D12FF3AC181492CF2E6" httpUri="http://treatment.plazi.org/id/03CB87846E4F1D12FF3AC181492CF2E6" lastPageNumber="327" pageId="26" pageNumber="327">
<subSubSection id="C37865196E4F1D12FF3AC1814B95F097" box="[151,398,1472,1499]" pageId="26" pageNumber="327" type="nomenclature">
<paragraph id="8BDD36926E4F1D12FF3AC1814B95F097" blockId="26.[151,398,1472,1535]" box="[151,398,1472,1499]" pageId="26" pageNumber="327">
<heading id="D09581FE6E4F1D12FF3AC1814B95F097" bold="true" box="[151,398,1472,1499]" fontSize="11" level="1" pageId="26" pageNumber="327" reason="1">
<taxonomicName id="4C624D116E4F1D12FF3AC1814B95F097" authorityName="Kobayashi" authorityYear="1934" box="[151,398,1472,1499]" class="Trilobita" family="Asaphidae" genus="Dolerobasilicus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="genus">
<emphasis id="B916EA806E4F1D12FF3AC1814B95F097" bold="true" box="[151,398,1472,1499]" pageId="26" pageNumber="327">
<emphasis id="B916EA806E4F1D12FF3AC1814B4FF097" bold="true" box="[151,340,1472,1499]" italics="true" pageId="26" pageNumber="327">Dolerobasilicus</emphasis>
? sp.
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C37865196E4F1D12FF3AC1A54AF5F0B3" box="[151,238,1508,1535]" pageId="26" pageNumber="327" type="description">
<paragraph id="8BDD36926E4F1D12FF3AC1A54AF5F0B3" blockId="26.[151,398,1472,1535]" box="[151,238,1508,1535]" pageId="26" pageNumber="327">
<figureCitation id="13592A176E4F1D12FF3AC1A54AF5F0B3" box="[151,238,1508,1535]" captionStart="FIGURE 8" captionStartId="22.[151,250,1587,1611]" captionTargetBox="[273,1314,181,1563]" captionTargetId="figure-29@22.[273,1314,181,1563]" captionTargetPageId="22" captionText="FIGURE 8. (16) Birmanites yunnanensis (Reed) from the Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. 1. Librigena (original of Reed 1917, pl. 7, fig. 3), GSI 11892. 2. Pygidium (original of Reed 1917, pl. 7, fig. 6), GSI 11895. 3. Pygidium (original of Reed 1917, pl. 7, fig. 8), GSI 11897. 4. Librigena (original of Reed 1917, pl. 7, fig. 5), GSI 11894. 5. Articulated specimen (original of Reed 1917, pl. 6, fig. 12), GSI 11887. 6. Cephalon (original of Reed 1917, pl. 6, fig. 14), GSI 11889. (7, 10) Remopleuriidae gen. et sp. indet. (Reed) from the Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. 7. Cranidium, (original of Reed 1917, pl. 6, fig. 9), GSI 11884. 10. Librigena (original of Reed 1917, pl. 6, fig. 10), GSI 11885. (8) Dolerobasilicus? sp. (Reed), Pygidium (original of Reed 1915, pl. 7, fig. 3), GSI 11535, Lower Naungkangyi Beds, Nawa, northern Shan State, Myanmar. (9) Nileus sp., Hypostome (original of Reed 1917, pl. 8, fig. 5), GSI 11904, Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. (11, 12) Niobe sp. (Reed). 11a, b. Pygidium (original of Reed 1915, pl. 5, fig. 14), GSI 11516, Hwe Mawng Beds (uppermost Katian), Nati, northern part of Shan State, Myanmar, original and retrodeformation. 12. Pygidium (original of Reed 1917, pl. 6, fig. 11), GSI 11886, Shihtien Formation (Darriwilian), Shidian, Baoshan Prefecture, western Yunnan, China. Scale bars = 5 mm for 16, 8, 9; = 2 mm for 7, 1012)" figureDoi="http://doi.org/10.5281/zenodo.6810312" httpUri="https://zenodo.org/record/6810312/files/figure.png" pageId="26" pageNumber="327">Fig. 8.8</figureCitation>
</paragraph>
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<subSubSection id="C37865196E4F1D12FF3AC26848D0F30D" box="[151,715,1577,1601]" pageId="26" pageNumber="327" type="reference_group">
<paragraph id="8BDD36926E4F1D12FF3AC26848D0F30D" blockId="26.[151,715,1577,1601]" box="[151,715,1577,1601]" pageId="26" pageNumber="327">
<treatmentCitationGroup id="AB7211BC6E4F1D12FF3AC26848D0F30D" box="[151,715,1577,1601]" pageId="26" pageNumber="327">
1915
<taxonomicName id="4C624D116E4F1D12FF5AC2684B89F30C" box="[247,402,1577,1601]" class="Trilobita" family="Asaphidae" genus="Megalaspis" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="B916EA806E4F1D12FF5AC2684B77F30D" box="[247,364,1577,1601]" italics="true" pageId="26" pageNumber="327">Megalaspis</emphasis>
sp.
</taxonomicName>
;
<treatmentCitation id="0AC310836E4F1D12FE30C2684857F30D" author="Reed, F. R. C." box="[413,588,1577,1601]" page="36" pageId="26" pageNumber="327" year="1915">
<bibRefCitation id="EFF34B636E4F1D12FE30C2684817F30D" author="Reed, F. R. C." box="[413,524,1577,1601]" pageId="26" pageNumber="327" pagination="1 - 98" refId="ref46807" refString="Reed, F. R. C. (1915) Supplementary Memoir on new Ordovician and Silurian fossils from the Northern Shan States. Palaeontologia Indica, New Series 6, 1 - 98." type="book chapter" year="1915">Reed 1915</bibRefCitation>
, p. 36
</treatmentCitation>
, pl. 7, fig. 3.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C37865196E4F1D12FF3AC22E4BEBF3E2" pageId="26" pageNumber="327" type="materials_examined">
<paragraph id="8BDD36926E4F1D12FF3AC22E4BEBF3E2" blockId="26.[151,1437,1647,1962]" pageId="26" pageNumber="327">
<emphasis id="B916EA806E4F1D12FF3AC22E4B1DF3C5" bold="true" box="[151,262,1647,1673]" pageId="26" pageNumber="327">Material.</emphasis>
Incomplete pygidium from the Lower Naungkangyi Beds (probable Darriwilian) at Nawa,
<figureCitation id="13592A176E4F1D12FB5AC22E4F56F3C5" box="[1271,1357,1647,1673]" captionStart="FIGURE 8" captionStartId="22.[151,250,1587,1611]" captionTargetBox="[273,1314,181,1563]" captionTargetId="figure-29@22.[273,1314,181,1563]" captionTargetPageId="22" captionText="FIGURE 8. (16) Birmanites yunnanensis (Reed) from the Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. 1. Librigena (original of Reed 1917, pl. 7, fig. 3), GSI 11892. 2. Pygidium (original of Reed 1917, pl. 7, fig. 6), GSI 11895. 3. Pygidium (original of Reed 1917, pl. 7, fig. 8), GSI 11897. 4. Librigena (original of Reed 1917, pl. 7, fig. 5), GSI 11894. 5. Articulated specimen (original of Reed 1917, pl. 6, fig. 12), GSI 11887. 6. Cephalon (original of Reed 1917, pl. 6, fig. 14), GSI 11889. (7, 10) Remopleuriidae gen. et sp. indet. (Reed) from the Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. 7. Cranidium, (original of Reed 1917, pl. 6, fig. 9), GSI 11884. 10. Librigena (original of Reed 1917, pl. 6, fig. 10), GSI 11885. (8) Dolerobasilicus? sp. (Reed), Pygidium (original of Reed 1915, pl. 7, fig. 3), GSI 11535, Lower Naungkangyi Beds, Nawa, northern Shan State, Myanmar. (9) Nileus sp., Hypostome (original of Reed 1917, pl. 8, fig. 5), GSI 11904, Shihtien Formation (Darriwilian), Pupiao, Baoshan Prefecture, western Yunnan, China. (11, 12) Niobe sp. (Reed). 11a, b. Pygidium (original of Reed 1915, pl. 5, fig. 14), GSI 11516, Hwe Mawng Beds (uppermost Katian), Nati, northern part of Shan State, Myanmar, original and retrodeformation. 12. Pygidium (original of Reed 1917, pl. 6, fig. 11), GSI 11886, Shihtien Formation (Darriwilian), Shidian, Baoshan Prefecture, western Yunnan, China. Scale bars = 5 mm for 16, 8, 9; = 2 mm for 7, 1012)" figureDoi="http://doi.org/10.5281/zenodo.6810312" httpUri="https://zenodo.org/record/6810312/files/figure.png" pageId="26" pageNumber="327">Fig. 8.8</figureCitation>
(
<bibRefCitation id="EFF34B636E4F1D12FAF7C22E4AC9F3E2" author="Reed, F. R. C." pageId="26" pageNumber="327" pagination="1 - 98" refId="ref46807" refString="Reed, F. R. C. (1915) Supplementary Memoir on new Ordovician and Silurian fossils from the Northern Shan States. Palaeontologia Indica, New Series 6, 1 - 98." type="book chapter" year="1915">Reed, 1915</bibRefCitation>
, pl. 7, fig. 3),
<collectionCode id="ED73AE576E4F1D12FEC2C2D24B87F3E1" box="[367,412,1683,1709]" country="India" httpUri="http://grbio.org/cool/jprb-qxkv" name="Geological Survey of India" pageId="26" pageNumber="327">GSI</collectionCode>
11535.
</paragraph>
</subSubSection>
<subSubSection id="C37865196E4F1D12FF6AC2F6492CF2E6" pageId="26" pageNumber="327" type="discussion">
<paragraph id="8BDD36926E4F1D12FF6AC2F6492CF2E6" blockId="26.[151,1437,1647,1962]" pageId="26" pageNumber="327">
<emphasis id="B916EA806E4F1D12FF6AC2F64B57F39D" bold="true" box="[199,332,1719,1745]" pageId="26" pageNumber="327">Discussion.</emphasis>
Although this species is known only from one incomplete pygidium, enough is preserved to show that it has an unusually deeply curved, elongate profile, relatively narrow axis and prominent ribs.
<bibRefCitation id="EFF34B636E4F1D12FAA3C29A4F87F3BA" author="Reed, F. R. C." box="[1294,1436,1755,1782]" pageId="26" pageNumber="327" pagination="1 - 98" refId="ref46807" refString="Reed, F. R. C. (1915) Supplementary Memoir on new Ordovician and Silurian fossils from the Northern Shan States. Palaeontologia Indica, New Series 6, 1 - 98." type="book chapter" year="1915">Reed (1915)</bibRefCitation>
compared this specimen with the pygidium of
<taxonomicName id="4C624D116E4F1D12FD31C2BE4906F255" box="[668,797,1791,1817]" class="Trilobita" family="Asaphidae" genus="Megalaspis" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="genus">
<emphasis id="B916EA806E4F1D12FD31C2BE4906F255" box="[668,797,1791,1817]" italics="true" pageId="26" pageNumber="327">Megalaspis</emphasis>
</taxonomicName>
(now
<taxonomicName id="4C624D116E4F1D12FCC9C34149F1F255" authorityName="Jaanuson" authorityYear="1956" box="[868,1002,1792,1817]" class="Trilobita" family="Asaphidae" genus="Megistaspis" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="genus">
<emphasis id="B916EA806E4F1D12FCC9C34149F1F255" box="[868,1002,1792,1817]" italics="true" pageId="26" pageNumber="327">Megistaspis</emphasis>
</taxonomicName>
) a diverse genus that is confined to the Baltic palaeoplate in the Ordovician. A more plausible comparison is with
<emphasis id="B916EA806E4F1D12FC4DC3624E83F271" box="[992,1176,1827,1853]" italics="true" pageId="26" pageNumber="327">
<taxonomicName id="4C624D116E4F1D12FC4DC3624E8EF271" authorityName="Kobayashi" authorityYear="1934" box="[992,1173,1827,1853]" class="Trilobita" family="Asaphidae" genus="Dolerobasilicus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="genus">Dolerobasilicus</taxonomicName>
,
</emphasis>
described from
<collectingCountry id="F37576026E4F1D12FAFCC3654F82F272" box="[1361,1433,1828,1854]" name="South Korea" pageId="26" pageNumber="327">Korea</collectingCountry>
. Revision of
<taxonomicName id="4C624D116E4F1D12FE8FC3064908F22D" authority="Kobayashi 1934" authorityName="Kobayashi" authorityYear="1934" box="[290,787,1863,1889]" class="Trilobita" family="Asaphidae" genus="Dolerobasilicus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Asaphida" pageId="26" pageNumber="327" phylum="Arthropoda" rank="species" species="yokusensis">
<emphasis id="B916EA806E4F1D12FE8FC306484FF22D" box="[290,596,1863,1889]" italics="true" pageId="26" pageNumber="327">Dolerobasilicus yokusensis</emphasis>
<bibRefCitation id="EFF34B636E4F1D12FDF1C3064908F22D" author="Kobayashi, T." box="[604,787,1863,1889]" pageId="26" pageNumber="327" pagination="521 - 585" refId="ref44978" refString="Kobayashi, T. (1934) The Cambro-Ordovician formations and faunas of South Chosen Palaeontology, part 2. Lower Ordovician faunas. Journal of the Faculty of Science, Imperial University of Japan, Tokyo, Section II, 3 (9), 521 - 585." type="journal article" year="1934">Kobayashi 1934</bibRefCitation>
</taxonomicName>
by
<bibRefCitation id="EFF34B636E4F1D12FC92C3094E03F22D" author="Lee, D. C. &amp; Choi, D. K." box="[831,1048,1863,1890]" pageId="26" pageNumber="327" pagination="167 - 183" refId="ref45323" refString="Lee, D. C. &amp; Choi, D. K. (1988) Reappraisal of the Middle Ordovician trilobites from the Jingunsan Formation, Korea. Journal of the Geological Society of Korea, 28, 167 - 183." type="journal article" year="1988">Lee &amp; Choi (1988)</bibRefCitation>
includes several pygidia (e.g.
<bibRefCitation id="EFF34B636E4F1D12FADFC3094B2DF2C9" author="Lee, D. C. &amp; Choi, D. K." pageId="26" pageNumber="327" pagination="167 - 183" refId="ref45323" refString="Lee, D. C. &amp; Choi, D. K. (1988) Reappraisal of the Middle Ordovician trilobites from the Jingunsan Formation, Korea. Journal of the Geological Society of Korea, 28, 167 - 183." type="journal article" year="1988">Lee &amp; Choi, 1988</bibRefCitation>
, pl. 1, fig. 9) with similar elongate form and about ten ribs. While the evidence is incomplete, it is sufficient to suggest the presence of this genus in
<collectingCountry id="F37576026E4F1D12FD69C3D14928F2E6" box="[708,819,1936,1962]" name="Myanmar" pageId="26" pageNumber="327">Myanmar</collectingCountry>
.
</paragraph>
</subSubSection>
</treatment>
</document>