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<mods:title id="B22D82A874C18E72BCF6813DBE744BBA">Middle Permian (Roadian) gastropods from the Khao Khad Formation, Central Thailand: Implications for palaeogeography of the Indochina Terrane</mods:title>
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<treatment id="03B587AB4F3C1572FF517DCCFEEEFD4A" ID-DOI="http://doi.org/10.5281/zenodo.3803941" ID-GBIF-Taxon="163737199" ID-Zenodo-Dep="3803941" LSID="urn:lsid:plazi:treatment:03B587AB4F3C1572FF517DCCFEEEFD4A" httpUri="http://treatment.plazi.org/id/03B587AB4F3C1572FF517DCCFEEEFD4A" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
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<paragraph id="8BA336BD4F3C1575FF517DCCFDFAFA49" blockId="11.[151,561,1458,1520]" box="[151,561,1458,1485]" pageId="11" pageNumber="12">
<heading id="D0EB81D14F3C1575FF517DCCFDFAFA49" bold="true" box="[151,561,1458,1485]" fontSize="10" level="2" pageId="11" pageNumber="12" reason="2">
<taxonomicName id="4C1C4D3E4F3C1575FF517DCCFDFAFA49" ID-CoL="8VLSQ" authority="Pan, 1985" authorityName="Pan" authorityYear="1985" box="[151,561,1458,1485]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="11" pageNumber="12" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3C1575FF517DCCFDFAFA49" bold="true" box="[151,561,1458,1485]" pageId="11" pageNumber="12">
<emphasis id="B968EAAF4F3C1575FF517DCCFE64FA48" bold="true" box="[151,431,1458,1485]" italics="true" pageId="11" pageNumber="12">Porcellia magninodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3C1575FE707DCCFDFAFA49" author="Pan" box="[438,561,1458,1484]" firstAuthor="Pan" pageId="11" pageNumber="12" pagination="29 - 37" refId="ref27208" refString="Pan, Y. - T. (1985) Fossil Gastropoda from the Permian of Sichuan, Guizhou, Yunnan, and Gaungxi. Acta Palaeontologica Sinica, 24 (1), 29 - 37" type="journal article" year="1985">Pan, 1985</bibRefCitation>
</emphasis>
</taxonomicName>
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</paragraph>
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<subSubSection id="C30665364F3C1575FF517DA8FF20FA75" box="[151,235,1494,1520]" pageId="11" pageNumber="12" type="description">
<paragraph id="8BA336BD4F3C1575FF517DA8FF20FA75" blockId="11.[151,561,1458,1520]" box="[151,235,1494,1520]" pageId="11" pageNumber="12">
(
<figureCitation id="13272A384F3C1575FF667DA8FF28FA75" box="[160,227,1494,1520]" captionStart="FIGURE 9" captionStartId="12.[151,250,1163,1188]" captionTargetBox="[152,1436,741,1139]" captionTargetId="figure@12.[152,1436,741,1139]" captionTargetPageId="12" captionText="FIGURE 9. Porcellia magninodosa Pan, 1985, AB, ESKU-19-LP 91. C, ESKU-19-LP 126. D, ESKU-19-LP 125. All scale bars represent 2 mm." figureDoi="http://doi.org/10.5281/zenodo.3763925" httpUri="https://zenodo.org/record/3763925/files/figure.png" pageId="11" pageNumber="12">Fig. 9</figureCitation>
)
</paragraph>
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<subSubSection id="C30665364F3C1575FF517E64FBE7F9B7" box="[151,1068,1562,1587]" pageId="11" pageNumber="12" type="reference_group">
<paragraph id="8BA336BD4F3C1575FF517E64FBE7F9B7" blockId="11.[151,1068,1562,1587]" box="[151,1068,1562,1587]" pageId="11" pageNumber="12">
<treatmentCitationGroup id="AB0C11934F3C1575FF517E64FBE7F9B7" box="[151,1068,1562,1587]" pageId="11" pageNumber="12">
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<taxonomicName id="4C1C4D3E4F3C1575FF517E64FDFAF9B6" ID-CoL="8VLSQ" authority="Pan, 1985: p. 35" authorityName="Pan" authorityPageNumber="35" authorityYear="1985" box="[151,561,1562,1587]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="11" pageNumber="12" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3C1575FF517E64FE4FF9B7" box="[151,388,1562,1586]" italics="true" pageId="11" pageNumber="12">Porcellia magninodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3C1575FE4C7E65FE39F9B6" author="Pan" box="[394,498,1562,1587]" firstAuthor="Pan" pageId="11" pageNumber="12" pagination="29 - 37" refId="ref27208" refString="Pan, Y. - T. (1985) Fossil Gastropoda from the Permian of Sichuan, Guizhou, Yunnan, and Gaungxi. Acta Palaeontologica Sinica, 24 (1), 29 - 37" type="journal article" year="1985">Pan, 1985</bibRefCitation>
: p. 35
</taxonomicName>
</treatmentCitation>
, pl. 2, fig. 10;
<treatmentCitation id="0ABD10AC4F3C1575FD037E65FC44F9B7" author="Pan, Y. - T. &amp; Yu, W. Z." box="[709,911,1562,1586]" page="43" pageId="11" pageNumber="12" year="1993">
<bibRefCitation id="EF8D4B4C4F3C1575FD037E65FC44F9B7" author="Pan &amp; Yu" box="[709,911,1562,1586]" firstAuthor="Pan" pageId="11" pageNumber="12" refId="ref27245" refString="Pan, Y. - T. &amp; Yu, W. Z. (1993) Permian Gastropoda of China. Ocean Press, Beijing, 68 pp." type="book" year="1993">Pan &amp; Yu, 1993: 43</bibRefCitation>
</treatmentCitation>
, pl. 6, figs 14.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C30665364F3C1575FF517E1EFD47F946" pageId="11" pageNumber="12" type="materials_examined">
<paragraph id="8BA336BD4F3C1575FF517E1EFD31F9FE" blockId="11.[151,1437,1632,2019]" box="[151,762,1632,1659]" pageId="11" pageNumber="12">
<emphasis id="B968EAAF4F3C1575FF517E1EFECDF9FE" bold="true" box="[151,262,1632,1659]" pageId="11" pageNumber="12">Material.</emphasis>
Two specimens: ESKU-19-
<collectionCode id="ED0DAE784F3C1575FDF87E1FFDABF9FE" box="[574,608,1633,1659]" country="Russia" name="Laboratory of Palaeontology" pageId="11" pageNumber="12">LP</collectionCode>
91, 125, 126.
</paragraph>
<paragraph id="8BA336BD4F3C1575FF017EFBFD47F946" blockId="11.[151,1437,1632,2019]" pageId="11" pageNumber="12">
Dimensions (mm): ESKU-19-
<collectionCode id="ED0DAE784F3C1575FDDE7EFBFDF1F91A" box="[536,570,1669,1695]" country="Russia" name="Laboratory of Palaeontology" pageId="11" pageNumber="12">LP</collectionCode>
91: height = 4.0; width = 11.7. ESKU-19-
<collectionCode id="ED0DAE784F3C1575FBDE7EFBFBF1F91A" box="[1048,1082,1669,1695]" country="Russia" name="Laboratory of Palaeontology" pageId="11" pageNumber="12">LP</collectionCode>
125: height = 3.0; width = 7.4. ESKU-19-
<collectionCode id="ED0DAE784F3C1575FECB7ED7FEE4F946" box="[269,303,1705,1731]" country="Russia" name="Laboratory of Palaeontology" pageId="11" pageNumber="12">LP</collectionCode>
126: height = 2.0; width = 9.4.
</paragraph>
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<subSubSection id="C30665364F3C1575FF017EB2FB68F8F2" pageId="11" pageNumber="12" type="description">
<paragraph id="8BA336BD4F3C1575FF017EB2FB68F8F2" blockId="11.[151,1437,1632,2019]" pageId="11" pageNumber="12">
<emphasis id="B968EAAF4F3C1575FF017EB2FE92F962" bold="true" box="[199,345,1740,1767]" pageId="11" pageNumber="12">Description.</emphasis>
Shell discoidal, pseudo-isostrophic, with 5 whorls; whorls well rounded; first whorl dextrally coiled, slightly elevated; later whorls planispirally coiled, expanding moderately; slit deep, extends one third of the whorl; selenizone narrow, concave, situated approximately at mid-whorl; selenizone bordered by two spiral lirae, representing periphery; upper and lower whorl face ornamented with
<emphasis id="B968EAAF4F3C1575FC597F44FC60F8D6" box="[927,939,1850,1875]" italics="true" pageId="11" pageNumber="12">c</emphasis>
. 24 to 26 prominent, regularly spaced nodes or obliquely elongated (opisthocyrt) costae; suture deep and impressed; aperture subcircular.
</paragraph>
</subSubSection>
<subSubSection id="C30665364F3C1572FF017FFFFEEEFD4A" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12" type="discussion">
<paragraph id="8BA336BD4F3C1572FF017FFFFABDFEE2" blockId="11.[151,1437,1632,2019]" lastBlockId="12.[151,1436,153,719]" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
<emphasis id="B968EAAF4F3C1575FF017FFFFEF0F81E" bold="true" box="[199,315,1921,1947]" pageId="11" pageNumber="12">Remarks.</emphasis>
The present species is a typical representative of the genus
<taxonomicName id="4C1C4D3E4F3C1575FC257FFFFB81F81E" authorityName="Leveille" authorityYear="1835" box="[995,1098,1921,1947]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="11" pageNumber="12" phylum="Mollusca" rank="genus">
<emphasis id="B968EAAF4F3C1575FC257FFFFB81F81E" box="[995,1098,1921,1947]" italics="true" pageId="11" pageNumber="12">Porcellia</emphasis>
</taxonomicName>
with its slightly elevated first whorls and nearly planispiral, dextrally coiled later whorls, with deep slit and very narrow selenizone. The present specimens closely resemble the
<typeStatus id="54A7881F4F3C1575FDC67FB7FDFBF866" box="[512,560,1993,2019]" pageId="11" pageNumber="12">type</typeStatus>
specimen of
<taxonomicName id="4C1C4D3E4F3C1575FD0E7FB7FB8EF866" authority="Pan, 1985" authorityName="Pan" authorityYear="1985" box="[712,1093,1992,2019]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="11" pageNumber="12" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3C1575FD0E7FB7FC05F866" box="[712,974,1993,2019]" italics="true" pageId="11" pageNumber="12">Porcellia magninodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3C1575FC137FB7FB8EF866" author="Pan" box="[981,1093,1992,2019]" firstAuthor="Pan" pageId="11" pageNumber="12" pagination="29 - 37" refId="ref27208" refString="Pan, Y. - T. (1985) Fossil Gastropoda from the Permian of Sichuan, Guizhou, Yunnan, and Gaungxi. Acta Palaeontologica Sinica, 24 (1), 29 - 37" type="journal article" year="1985">Pan, 1985</bibRefCitation>
</taxonomicName>
(p. 35, pl. 2, fig. 10) in shape, size and ornaments as well as those assigned to
<taxonomicName id="4C1C4D3E4F3B1572FD7B78E4FCBEFF36" authorityName="Pan" authorityYear="1985" box="[701,885,153,179]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3B1572FD7B78E4FD05FF36" box="[701,718,154,179]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FD1878E7FCBEFF36" box="[734,885,153,179]" italics="true" pageId="12" pageNumber="13">magninodosa</emphasis>
</taxonomicName>
by
<bibRefCitation id="EF8D4B4C4F3B1572FC6478E7FB96FF36" author="Pan &amp; Yu" box="[930,1117,153,179]" firstAuthor="Pan" pageId="12" pageNumber="13" refId="ref27245" refString="Pan, Y. - T. &amp; Yu, W. Z. (1993) Permian Gastropoda of China. Ocean Press, Beijing, 68 pp." type="book" year="1993">Pan &amp; Yu (1993</bibRefCitation>
, p. 43, pl. 6, figs 14) from the Late Permian of the Changxing Formation,
<collectingCountry id="F30B762D4F3B1572FD6978C3FD3DFF52" box="[687,758,189,215]" name="China" pageId="12" pageNumber="13">China</collectingCountry>
. Other similar species are
<taxonomicName id="4C1C4D3E4F3B1572FBE678C3FEE9FF7E" authority="Pan &amp; Erwin, 2002" authorityName="Pan &amp; Erwin" authorityYear="2002" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="paucituberculata">
<emphasis id="B968EAAF4F3B1572FBE678C3FA86FF52" box="[1056,1357,189,215]" italics="true" pageId="12" pageNumber="13">Porcellia paucituberculata</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FA9378C3FEE9FF7E" author="Pan &amp; Erwin" firstAuthor="Pan" pageId="12" pageNumber="13" pagination="1 - 49" refId="ref27138" refString="Pan, H. - Z. &amp; Erwin, D. H. (2002) Gastropods from the Permian of Guangxi and Yunnan provinces, South China. Journal of Paleontology, 78 (Supplement 56), 1 - 49. https: // doi. org / 10.1666 / 0022 - 3360 (2002) 76 [1: GFTPOG] 2.0. CO; 2" type="journal article" year="2002">Pan &amp; Erwin, 2002</bibRefCitation>
</taxonomicName>
(p. 10, fig. 5.1013) from the Permian of
<collectingRegion id="49D8F85F4F3B1572FD3D789FFC90FF7E" box="[763,859,225,251]" country="China" name="Guangxi" pageId="12" pageNumber="13">Guangxi</collectingRegion>
and
<collectingRegion id="49D8F85F4F3B1572FC57789FFC2CFF7E" box="[913,999,225,251]" country="China" name="Yunnan" pageId="12" pageNumber="13">Yunnan</collectingRegion>
Provinces, South
<collectingCountry id="F30B762D4F3B1572FB74789FFB3EFF7E" box="[1202,1269,225,251]" name="China" pageId="12" pageNumber="13">China</collectingCountry>
and
<taxonomicName id="4C1C4D3E4F3B1572FAEA789CFEDBFE9A" authority="Hall, 1859" authorityName="Hall" authorityYear="1859" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="nodosa">
<emphasis id="B968EAAF4F3B1572FAEA789CFAF6FF7E" box="[1324,1341,226,251]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FA8D789FFA57FF7E" box="[1355,1436,225,251]" italics="true" pageId="12" pageNumber="13">nodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FF51797BFEDBFE9A" author="Hall" box="[151,272,260,287]" firstAuthor="Hall" pageId="12" pageNumber="13" pagination="1 - 92" refId="ref24477" refString="Hall, J. (1859) Contributions to the palaeontology of Iowa; being descriptions of new species of Crinoidea and other fossils. Iowa Geological Survey, 1 (2), 1 - 92." type="journal article" year="1859">Hall, 1859</bibRefCitation>
</taxonomicName>
. The latter was also reported from the Lower Permian Sisophon Formation,
<collectingCountry id="F30B762D4F3B1572FBA0797BFB12FE9A" box="[1126,1241,261,287]" name="Cambodia" pageId="12" pageNumber="13">Cambodia</collectingCountry>
(
<bibRefCitation id="EF8D4B4C4F3B1572FB21797BFAB0FE9A" author="Delpey" box="[1255,1403,261,287]" firstAuthor="Delpey" pageId="12" pageNumber="13" pagination="345 - 369" refId="ref23861" refString="Delpey, G. (1941) Les Gasteropodes permiens du Cambodge. Journal de Conchyologie, 84, 255 - 278, 345 - 369." type="journal article" year="1941">Delpey 1941</bibRefCitation>
, p. 365, fig. 39).
<taxonomicName id="4C1C4D3E4F3B1572FEF77954FE69FEC6" authorityName="Hall" authorityYear="1859" box="[305,418,297,323]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="nodosa">
<emphasis id="B968EAAF4F3B1572FEF77954FE89FEC6" box="[305,322,298,323]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FE977957FE69FEC6" box="[337,418,297,323]" italics="true" pageId="12" pageNumber="13">nodosa</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C1C4D3E4F3B1572FDF17954FD26FEC6" authorityName="Pan" authorityYear="1985" box="[567,749,297,323]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3B1572FDF17954FD83FEC6" box="[567,584,298,323]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FD907957FD26FEC6" box="[598,749,297,323]" italics="true" pageId="12" pageNumber="13">magninodosa</emphasis>
</taxonomicName>
in having a rectangular whorl profile and fewer costae. In
<taxonomicName id="4C1C4D3E4F3B1572FA427954FE9EFEE2" authorityName="Pan &amp; Erwin" authorityYear="2002" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="paucituberculata">
<emphasis id="B968EAAF4F3B1572FA427954FA5EFEC6" box="[1412,1429,298,323]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FF517933FE9EFEE2" box="[151,341,333,359]" italics="true" pageId="12" pageNumber="13">paucituberculata</emphasis>
</taxonomicName>
, the nodes and the interspaces are wider and it has fewer costae compared to
<taxonomicName id="4C1C4D3E4F3B1572FB7F7930FAA4FEE2" authorityName="Pan" authorityYear="1985" box="[1209,1391,333,359]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3B1572FB7F7930FB01FEE2" box="[1209,1226,334,359]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FB1E7933FAA4FEE2" box="[1240,1391,333,359]" italics="true" pageId="12" pageNumber="13">magninodosa</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8BA336BD4F3B1572FF01790FFDD1FE56" blockId="12.[151,1436,153,719]" pageId="12" pageNumber="13">
This is the first known occurrence of the genus
<taxonomicName id="4C1C4D3E4F3B1572FD12790FFCF0FE0E" authorityName="Leveille" authorityYear="1835" box="[724,827,369,395]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="genus">
<emphasis id="B968EAAF4F3B1572FD12790FFCF0FE0E" box="[724,827,369,395]" italics="true" pageId="12" pageNumber="13">Porcellia</emphasis>
</taxonomicName>
in
<collectingCountry id="F30B762D4F3B1572FC9B790FFC0AFE0E" box="[861,961,369,395]" name="Thailand" pageId="12" pageNumber="13">Thailand</collectingCountry>
and the earliest occurrence of
<taxonomicName id="4C1C4D3E4F3B1572FAD5790CFF07FE2A" authorityName="Pan" authorityYear="1985" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3B1572FAD5790CFAEFFE0E" box="[1299,1316,370,395]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FAF7790CFF07FE2A" italics="true" pageId="12" pageNumber="13">magninodosa</emphasis>
</taxonomicName>
. Our report extends the range of the species to the Middle Permian and expands its geographical range to further south in the Palaeo-Tethys.
</paragraph>
<paragraph id="8BA336BD4F3B1572FF0179A3FEEEFD4A" blockId="12.[151,1436,153,719]" pageId="12" pageNumber="13">
The
<taxonomicName id="4C1C4D3E4F3B1572FF3F79A3FEABFE72" authorityName="Leveille" authorityYear="1835" box="[249,352,477,503]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="genus">
<emphasis id="B968EAAF4F3B1572FF3F79A3FEABFE72" box="[249,352,477,503]" italics="true" pageId="12" pageNumber="13">Porcellia</emphasis>
</taxonomicName>
species that have been recorded from the North America (e.g.,
<bibRefCitation id="EF8D4B4C4F3B1572FBDC79A3FADBFE72" author="Thein &amp; Nitecki" box="[1050,1296,477,503]" firstAuthor="Thein" pageId="12" pageNumber="13" pagination="1 - 238" refId="ref27790" refString="Thein, M. L. &amp; Nitecki, M. H. (1974) Chesterian (Upper Mississippian) Gastropoda of the Illinois basin. Fieldiana: Geology, New Series, 34, 1 - 238." type="journal article" year="1974">Thein &amp; Nitecki 1974</bibRefCitation>
;
<bibRefCitation id="EF8D4B4C4F3B1572FADD79A3FA5FFE72" author="Kues" box="[1307,1428,477,503]" firstAuthor="Kues" pageId="12" pageNumber="13" pagination="107 - 114" refId="ref25633" refString="Kues, B. S. (1984) Pennsylvanian stratigraphy and paleontology of the Taos area, north-central New Mexico. Rio Grande Rift: Northern New Mexico. New Mexico Geological Society Guidebook, 35, 107 - 114." type="journal article" year="1984">Kues 1984</bibRefCitation>
) and Europe (
<bibRefCitation id="EF8D4B4C4F3B1572FEED7A7FFE2BFD9E" author="Haughton" box="[299,480,512,539]" firstAuthor="Haughton" pageId="12" pageNumber="13" pagination="281 - 283" refId="ref24571" refString="Haughton, S. (1859) On some fossil Pyramidellidae from Carboniferous Limestone of Cork and Clonmel. Proceedings of the Dublin University Zoology and Botany Association, 1, 281 - 283." type="journal article" year="1859">Haughton 1859</bibRefCitation>
;
<bibRefCitation id="EF8D4B4C4F3B1572FE297A7FFD4CFD9E" author="Batten" box="[495,647,513,539]" firstAuthor="Batten" pageId="12" pageNumber="13" pagination="1 - 52" refId="ref22966" refString="Batten, R. L. (1966 a) The Lower Carboniferous gastropod fauna from the Hotwells Limestone of Compton Martin, Somerset. Part I. Palaeontographical Society Monographs, 119, 1 - 52." type="journal article" year="1966" yearSuffix="a">
Batten 1966
<emphasis id="B968EAAF4F3B1572FDBF7A7CFD4CFD9E" box="[633,647,514,539]" italics="true" pageId="12" pageNumber="13">a</emphasis>
</bibRefCitation>
) are from the Carboniferous of Panthalassa and the western Palaeo- Tethys, respectively. The
<taxonomicName id="4C1C4D3E4F3B1572FE7E7A5BFDD4FDBA" authorityName="Leveille" authorityYear="1835" box="[440,543,549,575]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="genus">
<emphasis id="B968EAAF4F3B1572FE7E7A5BFDD4FDBA" box="[440,543,549,575]" italics="true" pageId="12" pageNumber="13">Porcellia</emphasis>
</taxonomicName>
species reported from Asia are from the Permian of the eastern Palaeo-Tethys, e.g.,
<taxonomicName id="4C1C4D3E4F3B1572FF0B7A34FE7EFDE6" authority="Hall, 1859" authorityName="Hall" authorityYear="1859" box="[205,437,584,611]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="nodosa">
<emphasis id="B968EAAF4F3B1572FF0B7A34FEF2FDE6" box="[205,313,585,611]" italics="true" pageId="12" pageNumber="13">P. nodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FE867A37FE7EFDE6" author="Hall" box="[320,437,584,611]" firstAuthor="Hall" pageId="12" pageNumber="13" pagination="1 - 92" refId="ref24477" refString="Hall, J. (1859) Contributions to the palaeontology of Iowa; being descriptions of new species of Crinoidea and other fossils. Iowa Geological Survey, 1 (2), 1 - 92." type="journal article" year="1859">Hall, 1859</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F30B762D4F3B1572FE3F7A37FDA7FDE6" box="[505,620,585,611]" name="Cambodia" pageId="12" pageNumber="13">Cambodia</collectingCountry>
(
<bibRefCitation id="EF8D4B4C4F3B1572FDBC7A37FCC5FDE6" author="Delpey" box="[634,782,585,611]" firstAuthor="Delpey" pageId="12" pageNumber="13" pagination="345 - 369" refId="ref23861" refString="Delpey, G. (1941) Les Gasteropodes permiens du Cambodge. Journal de Conchyologie, 84, 255 - 278, 345 - 369." type="journal article" year="1941">Delpey 1941</bibRefCitation>
),
<taxonomicName id="4C1C4D3E4F3B1572FCE47A34FB95FDE6" authority="Hayasaka, 1955" authorityName="Hayasaka" authorityYear="1955" box="[802,1118,584,611]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="puzoidea">
<emphasis id="B968EAAF4F3B1572FCE47A34FCF8FDE6" box="[802,819,586,611]" italics="true" pageId="12" pageNumber="13">P</emphasis>
.
<emphasis id="B968EAAF4F3B1572FC867A37FC6EFDE6" box="[832,933,585,611]" italics="true" pageId="12" pageNumber="13">puzoidea</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FC6A7A37FB95FDE6" author="Hayasaka" box="[940,1118,584,611]" firstAuthor="Hayasaka" pageId="12" pageNumber="13" pagination="21 - 24" refId="ref24606" refString="Hayasaka, I. (1955) A new Permian species of Porcellia from Japan. Journal of the Faculty of Science, Hokkaido University, Series 4, Geology and Mineralogy, 9, 21 - 24." type="journal article" year="1955">Hayasaka, 1955</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F30B762D4F3B1572FB647A37FB2EFDE6" box="[1186,1253,585,611]" name="Japan" pageId="12" pageNumber="13">Japan</collectingCountry>
,
<taxonomicName id="4C1C4D3E4F3B1572FB297A34FECCFD02" authority="Pan, 1985" authorityName="Pan" authorityYear="1985" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="lingshuiensis">
<emphasis id="B968EAAF4F3B1572FB297A34FA57FDE6" box="[1263,1436,585,611]" italics="true" pageId="12" pageNumber="13">P. lingshuiensis</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FF517A13FECCFD02" author="Pan" box="[151,263,620,647]" firstAuthor="Pan" pageId="12" pageNumber="13" pagination="29 - 37" refId="ref27208" refString="Pan, Y. - T. (1985) Fossil Gastropoda from the Permian of Sichuan, Guizhou, Yunnan, and Gaungxi. Acta Palaeontologica Sinica, 24 (1), 29 - 37" type="journal article" year="1985">Pan, 1985</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F30B762D4F3B1572FE8B7A13FE58FD02" box="[333,403,621,647]" name="China" pageId="12" pageNumber="13">China</collectingCountry>
,
<taxonomicName id="4C1C4D3E4F3B1572FE587A10FD03FD02" authority="Pan, 1985" authorityName="Pan" authorityYear="1985" box="[414,712,620,647]" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="magninodosa">
<emphasis id="B968EAAF4F3B1572FE587A10FD9AFD02" box="[414,593,621,647]" italics="true" pageId="12" pageNumber="13">P. magninodosa</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FD9E7A13FD03FD02" author="Pan" box="[600,712,620,647]" firstAuthor="Pan" pageId="12" pageNumber="13" pagination="29 - 37" refId="ref27208" refString="Pan, Y. - T. (1985) Fossil Gastropoda from the Permian of Sichuan, Guizhou, Yunnan, and Gaungxi. Acta Palaeontologica Sinica, 24 (1), 29 - 37" type="journal article" year="1985">Pan, 1985</bibRefCitation>
</taxonomicName>
from
<collectingCountry id="F30B762D4F3B1572FCCB7A13FC9BFD02" box="[781,848,621,647]" name="China" pageId="12" pageNumber="13">China</collectingCountry>
and
<collectingCountry id="F30B762D4F3B1572FC417A13FC20FD02" box="[903,1003,621,647]" name="Thailand" pageId="12" pageNumber="13">Thailand</collectingCountry>
and
<taxonomicName id="4C1C4D3E4F3B1572FBE77A10FF04FD2E" authority="Pan &amp; Erwin, 2002" authorityName="Pan &amp; Erwin" authorityYear="2002" class="Gastropoda" family="Porcelliidae" genus="Porcellia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Pleurotomariida" pageId="12" pageNumber="13" phylum="Mollusca" rank="species" species="paucituberculata">
<emphasis id="B968EAAF4F3B1572FBE77A10FB30FD02" box="[1057,1275,621,647]" italics="true" pageId="12" pageNumber="13">P. paucituberculata</emphasis>
<bibRefCitation id="EF8D4B4C4F3B1572FAC47A13FF04FD2E" author="Pan &amp; Erwin" firstAuthor="Pan" pageId="12" pageNumber="13" pagination="1 - 49" refId="ref27138" refString="Pan, H. - Z. &amp; Erwin, D. H. (2002) Gastropods from the Permian of Guangxi and Yunnan provinces, South China. Journal of Paleontology, 78 (Supplement 56), 1 - 49. https: // doi. org / 10.1666 / 0022 - 3360 (2002) 76 [1: GFTPOG] 2.0. CO; 2" type="journal article" year="2002">Pan &amp; Erwin, 2002</bibRefCitation>
</taxonomicName>
from South
<collectingCountry id="F30B762D4F3B1572FEA67AEFFE6CFD2E" box="[352,423,657,683]" name="China" pageId="12" pageNumber="13">China</collectingCountry>
. Our report further fills the biogeographic gap between these Carboniferous and Permian occurrences.
</paragraph>
</subSubSection>
</treatment>
</document>