235 lines
28 KiB
XML
235 lines
28 KiB
XML
<document ID-CLB-Dataset="222069" ID-DOI="http://dx.doi.org/10.3897/fr.26.e93456" ID-GBIF-Dataset="6483d9f1-27f8-4501-9c34-75dbe4d39a05" ID-Pensoft-Pub="2193-0074-1-1" ID-Pensoft-UUID="31E88D0E24BE5C97B7D3DF99135E1514" ID-ZooBank="F8C273F5D7C54A5CBF0A56C7C3085D55" ModsDocID="2193-0074-26-1-1" checkinTime="1673408644191" checkinUser="pensoft" docAuthor="Manitkoon, Sita, Deesri, Uthumporn, Warapeang, Prapasiri, Nonsrirach, Thanit & Chanthasit, Phornphen" docDate="2023" docId="91D3D1F3B05D5AF78A7DCA97CD96601F" docLanguage="en" docName="FossilRecord 26(1): 1-25" docOrigin="Fossil Record 26 (1)" docPubDate="2023-01-10" docSource="http://dx.doi.org/10.3897/fr.26.e93456" docTitle="Siamodon nimngami Buffetaut & Suteethorn 2011" docType="treatment" docVersion="5" id="31E88D0E24BE5C97B7D3DF99135E1514" lastPageNumber="1" masterDocId="31E88D0E24BE5C97B7D3DF99135E1514" masterDocTitle="Ornithischian dinosaurs in Southeast Asia: a review with palaeobiogeographic implications" masterLastPageNumber="25" masterPageNumber="1" pageNumber="1" updateTime="1732690605966" updateUser="ExternalLinkService">
|
|
<mods:mods id="21A79AF7F80C89ADCD2CC30D68EEC5EA" xmlns:mods="http://www.loc.gov/mods/v3">
|
|
<mods:titleInfo id="593D2A4625B6FA72F4703E92B44EA82C">
|
|
<mods:title id="38C30C15DB8319CD6E18A1C75A6734A0">Ornithischian dinosaurs in Southeast Asia: a review with palaeobiogeographic implications</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:name id="93A1F2D7A538B2EE1653BEE74456D6DD" type="personal">
|
|
<mods:role id="000C16B5C3E3E1B20551F92A4D65D552">
|
|
<mods:roleTerm id="5B8D72935F5AE27EF8C84D0E2C843028">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="654D321DFD228D82D0AB927E2A20F342">Manitkoon, Sita</mods:namePart>
|
|
<mods:nameIdentifier id="AB4E7E989D722F5EB5EC0FA805C18B7A" type="ORCID">https://orcid.org/0000-0002-0375-329X</mods:nameIdentifier>
|
|
<mods:affiliation id="B51A1C696E70EF72C362BB99B210D186">Faculty of Science, Mahasarakham University, Khamriang, Mahasarakham, 44150, Thailand</mods:affiliation>
|
|
</mods:name>
|
|
<mods:name id="6B98D7773CE1FA59322F9FEAF93AA717" type="personal">
|
|
<mods:role id="3B0A90EAA8E2354E1C40A11CAECE3528">
|
|
<mods:roleTerm id="5165DCEFAC725585E0C19562CF93148B">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="A884837A30CDD4AB179BF9FED2E4EC26">Deesri, Uthumporn</mods:namePart>
|
|
<mods:nameIdentifier id="40EFE32C46F36223CA5DC77B7C995A78" type="ORCID">https://orcid.org/0000-0002-6095-8654</mods:nameIdentifier>
|
|
<mods:affiliation id="0F2829E216D51EB45A25DD4EB192524E">Faculty of Science, Mahasarakham University, Khamriang, Mahasarakham, 44150, Thailand</mods:affiliation>
|
|
<mods:nameIdentifier id="A2C39287BFFD26A513623DC72C5B6CCA" type="email">uthumporn_deesri@yahoo.com</mods:nameIdentifier>
|
|
</mods:name>
|
|
<mods:name id="7BC15C3835B5ACA3F190DB447288150F" type="personal">
|
|
<mods:role id="57DDFACD97F52DD17E41081316C1DC54">
|
|
<mods:roleTerm id="7ED6154EA9B215DE080AB28C2695B71C">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="39E24305CC3A8014A74177319E935ECB">Warapeang, Prapasiri</mods:namePart>
|
|
<mods:nameIdentifier id="2FC81C1356CCA0ADA7873AE4E24494FD" type="ORCID">https://orcid.org/0000-0001-7999-0323</mods:nameIdentifier>
|
|
<mods:affiliation id="54651EC23890C7EAF6986F9680F39027">Faculty of Science, Mahasarakham University, Khamriang, Mahasarakham, 44150, Thailand</mods:affiliation>
|
|
</mods:name>
|
|
<mods:name id="77831F0C929DDEA629E25DEB03756B86" type="personal">
|
|
<mods:role id="444C71F45EB8B27A85CFCEB21A4D0E65">
|
|
<mods:roleTerm id="AFCBCAC346EC65A932D1374246E5A129">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="6A3BCC3A893DDD4A758A1C0C05BA50B8">Nonsrirach, Thanit</mods:namePart>
|
|
<mods:nameIdentifier id="E414A44121F7169250B3B4EE92ACD334" type="ORCID">https://orcid.org/0000-0001-7432-628X</mods:nameIdentifier>
|
|
<mods:affiliation id="DD1DA4BE7E79E21B7093FF289BD8DB0E">Faculty of Science, Mahasarakham University, Khamriang, Mahasarakham, 44150, Thailand</mods:affiliation>
|
|
</mods:name>
|
|
<mods:name id="40F2B085A96EA284A12550F79AAB67EE" type="personal">
|
|
<mods:role id="49BD7F9338CC51E85944332E1614AF04">
|
|
<mods:roleTerm id="7F1E320A45233FDB1679BD59C3F9269E">Author</mods:roleTerm>
|
|
</mods:role>
|
|
<mods:namePart id="2C7565975900B00E5E44F1505B6B1B3D">Chanthasit, Phornphen</mods:namePart>
|
|
<mods:affiliation id="570F05449671BFC03AF89B28EC32166D">Palaeontological Research and Education Centre, Mahasarakham University, Khamriang, Mahasarakham, 44150, Thailand</mods:affiliation>
|
|
</mods:name>
|
|
<mods:typeOfResource id="11EE57D647F1BE91F3900AFDBB9D4A1A">text</mods:typeOfResource>
|
|
<mods:relatedItem id="4A23652FB15175698EFC9606F9CD2534" type="host">
|
|
<mods:titleInfo id="CBF8A7753C56AC896CE52CD41DD430D4">
|
|
<mods:title id="4E6120D20C289FF1DEDC7CD45A5A572B">Fossil Record</mods:title>
|
|
</mods:titleInfo>
|
|
<mods:part id="C7715B2099CEF7B13670035567BCC000">
|
|
<mods:date id="29CB8AD63B4947DC2DAB30B0D3B6807A">2023</mods:date>
|
|
<mods:detail id="F0460AFC5E16121EE8DF3A62221A7675" type="pubDate">
|
|
<mods:number id="8A47AC14CD24C13F11D3832A4D35C9B4">2023-01-10</mods:number>
|
|
</mods:detail>
|
|
<mods:detail id="D081DC1C917B1D11B5B990799FC7B794" type="volume">
|
|
<mods:number id="271B8231DC344387A0755CCC75C2802D">26</mods:number>
|
|
</mods:detail>
|
|
<mods:detail id="D7738478EF7749FCE91876BA2C2E85F2" type="issue">
|
|
<mods:number id="78FC53382B9847EB44AEC4D86BEDF33E">1</mods:number>
|
|
</mods:detail>
|
|
<mods:extent id="F5EB806E3C90B29A7DABF6AA0632836D" unit="page">
|
|
<mods:start id="D5B35F36E3669F781FA2A355CCF15F64">1</mods:start>
|
|
<mods:end id="FC85E2C5FE57B9360012D6C22C9257A2">25</mods:end>
|
|
</mods:extent>
|
|
</mods:part>
|
|
</mods:relatedItem>
|
|
<mods:location id="FC5378E541AD71CFCE66565DCFAF284B">
|
|
<mods:url id="690A682C8AB142153E8D36B840B7DDC1">http://dx.doi.org/10.3897/fr.26.e93456</mods:url>
|
|
</mods:location>
|
|
<mods:classification id="5F064E4CD52B9576B2B273A5509BE2B5">journal article</mods:classification>
|
|
<mods:identifier id="8FEAB74AA34256FF81FF1C970501BACE" type="DOI">http://dx.doi.org/10.3897/fr.26.e93456</mods:identifier>
|
|
<mods:identifier id="B76D6A7016C2F2E01B754F5EF399EF4C" type="Pensoft-Pub">2193-0074-1-1</mods:identifier>
|
|
<mods:identifier id="4EC0F648121805F24D45AB923B7F3D41" type="ZooBank">F8C273F5D7C54A5CBF0A56C7C3085D55</mods:identifier>
|
|
<mods:identifier id="B29438FF768CE305EA312141C0DAA752" type="Pensoft-UUID">31E88D0E24BE5C97B7D3DF99135E1514</mods:identifier>
|
|
</mods:mods>
|
|
<treatment id="91D3D1F3B05D5AF78A7DCA97CD96601F" ID-GBIF-Taxon="208787375" LSID="urn:lsid:plazi:treatment:91D3D1F3B05D5AF78A7DCA97CD96601F" httpUri="http://treatment.plazi.org/id/91D3D1F3B05D5AF78A7DCA97CD96601F" lastPageNumber="1" pageId="0" pageNumber="1" scope_family="Stegosauridae">
|
|
<subSubSection id="E0E6795E4EFAC69304912F129DA4A56A" pageId="0" pageNumber="1" type="nomenclature">
|
|
<paragraph id="F38CDCA317159C46B5FFFA91F15A9CEA" pageId="0" pageNumber="1">
|
|
<taxonomicName id="37833E5D03473BC7A46B24251103AD2E" LSID="91D3D1F3-B05D-5AF7-8A7D-CA97CD96601F" authority="Buffetaut & Suteethorn, 2011" authorityName="Buffetaut & Suteethorn" authorityYear="2011" family="Hadrosauridae" genus="Siamodon" higherTaxonomySource="treatment-meta" kingdom="Animalia" lsidName="Siamodon nimngami" order="Ornithischia" pageId="0" pageNumber="1" rank="species" species="nimngami">Siamodon nimngami Buffetaut & Suteethorn, 2011</taxonomicName>
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="001500CAAD9798F2B45A399A8848FBCD" pageId="0" pageNumber="1" type="materials_examined">
|
|
<paragraph id="75BADE475DDA1AE3333787D94C4C14E7" pageId="0" pageNumber="1">Material.</paragraph>
|
|
<paragraph id="654EC889DCCCE8CA6CC3E972D2E7CA32" pageId="0" pageNumber="1">
|
|
<typeStatus id="6214BFBC509D2285E2BE451CBBE51A6E">holotype</typeStatus>
|
|
PRC-4, a left maxilla (Fig.
|
|
<figureCitation id="97A40A67CE14479416B3E7CDCF129F80" captionStart="Figure 3" captionStartId="F3" captionText="Figure 3. Exceptional specimen of ornithischian dinosaurs from Thailand. Stegosaurid vertebra (A. SM 2011 - 1 - 001), Phu Noi neornithischian left dentary (B. PRC 149), Phu Noi neornithischian articulated skeleton (C. PRC 150), Dan Luang neornithischian left femur (D. SM 2016 - 1 - 081), Psitacosaurus indet. Right femur (E. SM 2016 - 1 - 080), Psitacosaurus sattayaraki right dentary (F. SM 2016 - 1 - 163), Khok Pha Suam iguanodontian dorsal vertebra (G. SM 2021 - 1 - 113), Khok Pha Suam iguanodontian left femur (H. SM 2021 - 1 - 118), Siamodon nimngami left maxilla (I. PRC- 4), Ratchasimasaurus suranareae left dentary (J. NRRU-A 2064), Sirindhorna khoratensis left maxilla (K. NRRU-A 2048), Sirindhorna khoratensis right dentary (L. NRRU 3001 - 167); A and G in anterior view; B-D, and H-J in lateral view; E, F and L in medial view. Scale bars: 10 cm (A, C-E, G-L); 5 cm (B, F)." figureDoi="10.3897/fr.26.e93456.figure3" httpUri="https://binary.pensoft.net/fig/793761" pageId="0" pageNumber="1">3I</figureCitation>
|
|
) and the referred materials, an isolated maxillary tooth (PRC-5) and a braincase (PRC-6).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="BBD73C6B044A90B3029B131C658652FE" pageId="0" pageNumber="1" type="locality and age">
|
|
<paragraph id="C261ED09B69D38249F2A2045BBDDFFA5" pageId="0" pageNumber="1">Locality and age.</paragraph>
|
|
<paragraph id="3DCE6EFA60B41153D36B74A98B784D04" pageId="0" pageNumber="1">
|
|
Ban Saphan Hin, Khok Kruat Subdistrict, Nakhon Ratchasima Province; late Early Cretaceous Khok Kruat Formation (Aptian) (
|
|
<bibRefCitation id="8A14FC107E52B3309683A8BD3FB4F871" DOI="https://doi.org/10.1016/j.annpal.2011.08.001" author="Buffetaut, E" journalOrPublisher="Annales de Paleontologie" pageId="0" pageNumber="1" pagination="51 - 62" refId="B21" refString="Buffetaut, E, Suteethorn, V, 2011. A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand. Annales de Paleontologie 97 (1-2): 51 - 62, DOI: https://doi.org/10.1016/j.annpal.2011.08.001" title="A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand." url="https://doi.org/10.1016/j.annpal.2011.08.001" volume="97" year="2011">Buffetaut and Suteethorn 2011</bibRefCitation>
|
|
).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="B02C1A014280CD20DE68FDA3B965C8CA" pageId="0" pageNumber="1" type="previous study">
|
|
<paragraph id="77819600E03D179180685D1E6BAD2B43" pageId="0" pageNumber="1">Previous study.</paragraph>
|
|
<paragraph id="DB367B20F8F84C5566933E9B28994D04" pageId="0" pageNumber="1">
|
|
<taxonomicName id="46FABE17CAEAA7B795150DA43645330F" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="256B1ED54B513C1F0D61B72A9E18828C" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
shows a combination of iguanodontian features: maxilla shaped like an isosceles triangle, with the dorsal process located at about mid-length of the bone; a strong longitudinal bulge on the medial surface of the maxilla; maxillary teeth bear a strong median primary ridge, one short weak subsidiary ridge or no subsidiary ridge; and mamillated denticles on the crown margins similar to
|
|
<taxonomicName id="8EA084BEAD68E169E0B8BF5D33D83B35" baseAuthorityName="Lu" baseAuthorityYear="1997" class="Reptilia" genus="Gongpoquansaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Gongpoquansaurus mazongshanensis" order="Ornithischia" pageId="0" pageNumber="1" phylum="Chordata" rank="species" species="mazongshanensis">
|
|
<emphasis id="242B3B93DE8F71E1003911F17052CA0C" italics="true" pageId="0" pageNumber="1">Gongpoquansaurus mazongshanensis</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="59A76C529B0D537110FA043CA14502A3" class="Reptilia" family="Iguanodontidae" genus="Probactrosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Probactrosaurus mongoliensis" order="Ornithischia" pageId="0" pageNumber="1" phylum="Chordata" rank="species" species="mongoliensis">
|
|
<emphasis id="87FD778D0EE4261590BC830BCB0B5897" italics="true" pageId="0" pageNumber="1">Probactrosaurus mongoliensis</emphasis>
|
|
</taxonomicName>
|
|
from China (
|
|
<bibRefCitation id="1E2124F0A744591396F5AEBA82639179" DOI="https://doi.org/10.1016/j.annpal.2011.08.001" author="Buffetaut, E" journalOrPublisher="Annales de Paleontologie" pageId="0" pageNumber="1" pagination="51 - 62" refId="B21" refString="Buffetaut, E, Suteethorn, V, 2011. A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand. Annales de Paleontologie 97 (1-2): 51 - 62, DOI: https://doi.org/10.1016/j.annpal.2011.08.001" title="A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand." url="https://doi.org/10.1016/j.annpal.2011.08.001" volume="97" year="2011">Buffetaut and Suteethorn 2011</bibRefCitation>
|
|
). There may have been as many as 25 tooth positions in the maxilla (
|
|
<bibRefCitation id="1F76AD490321153404E74D4AB04A8C3D" DOI="https://doi.org/10.1016/j.annpal.2011.08.001" author="Buffetaut, E" journalOrPublisher="Annales de Paleontologie" pageId="0" pageNumber="1" pagination="51 - 62" refId="B21" refString="Buffetaut, E, Suteethorn, V, 2011. A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand. Annales de Paleontologie 97 (1-2): 51 - 62, DOI: https://doi.org/10.1016/j.annpal.2011.08.001" title="A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand." url="https://doi.org/10.1016/j.annpal.2011.08.001" volume="97" year="2011">Buffetaut and Suteethorn 2011</bibRefCitation>
|
|
). It differs from hadrosaurids in the jugal, which forms a tab-like process, whereas in hadrosaurids, the expanded anterior end of the jugal contacts and overlaps a large sutural area on the maxilla (
|
|
<bibRefCitation id="DE9B745114E50C16895E08541789B671" DOI="https://doi.org/10.1016/j.annpal.2011.08.001" author="Buffetaut, E" journalOrPublisher="Annales de Paleontologie" pageId="0" pageNumber="1" pagination="51 - 62" refId="B21" refString="Buffetaut, E, Suteethorn, V, 2011. A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand. Annales de Paleontologie 97 (1-2): 51 - 62, DOI: https://doi.org/10.1016/j.annpal.2011.08.001" title="A new iguanodontian dinosaur from the Khok Kruat Formation (Early Cretaceous, Aptian) of northeastern Thailand." url="https://doi.org/10.1016/j.annpal.2011.08.001" volume="97" year="2011">Buffetaut and Suteethorn 2011</bibRefCitation>
|
|
).
|
|
<taxonomicName id="24E0A061B6807B84EBDAFFB273CE32DF" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="F3B1BE22FF8FF14EB01942CD4B0FFCA0" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="9202BB86E80A84FF64DCF0456900FC0B" lsidName="R. suranareae" pageId="0" pageNumber="1" rank="species" species="suranareae">
|
|
<emphasis id="42F7D95849C0D33624619A96C9B82BE5" italics="true" pageId="0" pageNumber="1">R. suranareae</emphasis>
|
|
</taxonomicName>
|
|
were mentioned as members of hadrosauroids (
|
|
<bibRefCitation id="145F08E6628810DF3829DA2E5D8BD25D" DOI="https://doi.org/10.1371/journal.pone.0145904" author="Shibata, M" journalOrPublisher="Acta Geologica Sinica - English Edition" pageId="0" pageNumber="1" refId="B125" refString="Shibata, M, Jintasakul, P, Azuma, Y, You, H-L, 2015. A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10(12): e0145904. https://doi.org/10.1371/journal.pone.0145904" title="A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10 (12): e 0145904." url="https://doi.org/10.1371/journal.pone.0145904" year="2015">Shibata et al. 2015</bibRefCitation>
|
|
), but the phylogenetic analysis recovered
|
|
<taxonomicName id="2F0F840174F2ADE0EE6BACA8C4EF3C4A" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="7A3A349065B55F9D007D308913C4F897" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
at the base of Hadrosauriformes (
|
|
<bibRefCitation id="19A0BAC4C27A289BC3DD2984A2E7F0A7" DOI="https://doi.org/10.1016/j.cretres.2019.104334" author="Madzia, D" journalOrPublisher="Journal of Systematic Palaeontology" pageId="0" pageNumber="1" refId="B82" refString="Madzia, D, Jagt, JWM, Mulder, EWA, 2020. Osteology, phylogenetic affinities and taxonomic status of the enigmatic late Maastrichtian ornithopod taxon Orthomerus dolloi (Dinosauria, Ornithischia). Cretaceous Research 108: 104334. https://doi.org/10.1016/j.cretres.2019.104334" title="Osteology, phylogenetic affinities and taxonomic status of the enigmatic late Maastrichtian ornithopod taxon Orthomerus dolloi (Dinosauria, Ornithischia). Cretaceous Research 108: 104334." url="https://doi.org/10.1016/j.cretres.2019.104334" year="2020">Madzia et al. 2020</bibRefCitation>
|
|
).
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="5B8A8186EAE43840BB2F2D5D5D260CDE" pageId="0" pageNumber="1" type="materials_examined">
|
|
<paragraph id="C14412FD82D164DF7264157C94203E22" pageId="0" pageNumber="1">Additional material and description.</paragraph>
|
|
<paragraph id="8F435E4AC57AE48A7707B7872460F685" pageId="0" pageNumber="1">
|
|
WNM-Sp-001 (Fig.
|
|
<figureCitation id="FD1900096E36C5F0C9505D5870147E28" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Isolated Thai iguanodontian teeth; Sirindhorna khoratensis maxillary tooth (A, B. NRRU-A 1959) and dentary tooth (G, H. NRRU 3001 - 28); Siamodon nomngami maxillary tooth (C, D. PRC- 5) and dentary tooth (I, J. WNM-Sp- 001); Khok Pha Suam iguanodontian maxillary tooth (E, F. SM 2021 - 1 - 122) and dentary tooth (K, L. SM 2021 - 1 - 121). In labial (A, C, E), mesial (B, D, F), lingual (G, I, K), and distal (H, J, L) views. Abbreviations: ar; accessory ridges, pr; primary ridge, sr; secondary ridge. Scale bars: 0.5 cm (Modified from Buffetaut and Suteethorn (2011); Shibata et al. (2015); Manitkoon et al. (2022))." figureDoi="10.3897/fr.26.e93456.figure8" httpUri="https://binary.pensoft.net/fig/793766" pageId="0" pageNumber="1">8I, J</figureCitation>
|
|
), an isolated dentary tooth from the same locality is referred to
|
|
<taxonomicName id="193342AF15407A878F49447069EBF56B" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="FF0F68B459FF565C5B86FBFB72232E04" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
. It is well preserved and apparently from a right dentary. It generally resembles a previously reported
|
|
<taxonomicName id="C47B2E0EA180B2C22C73933AAD0A035B" lsidName="S. khoratensis" pageId="0" pageNumber="1" rank="species" species="khoratensis">
|
|
<emphasis id="14CB1A1EFFEF47614115B9DD46F5AA89" italics="true" pageId="0" pageNumber="1">S. khoratensis</emphasis>
|
|
</taxonomicName>
|
|
dentary tooth (
|
|
<bibRefCitation id="7DA5C2F51FA35D991DA67CDE4B30DD0D" DOI="https://doi.org/10.1371/journal.pone.0145904" author="Shibata, M" journalOrPublisher="Acta Geologica Sinica - English Edition" pageId="0" pageNumber="1" refId="B125" refString="Shibata, M, Jintasakul, P, Azuma, Y, You, H-L, 2015. A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10(12): e0145904. https://doi.org/10.1371/journal.pone.0145904" title="A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10 (12): e 0145904." url="https://doi.org/10.1371/journal.pone.0145904" year="2015">Shibata et al. 2015</bibRefCitation>
|
|
). The crown of the tooth is leaf-shaped with enamel covering only the lingual surface. The ratio of apicobasal length / mesiodistal width: 1.87. One prominent primary ridge situated slightly distal to the mid-line makes the crown asymmetric. The secondary ridge is positioned mesial and it is less prominent. In contrast to
|
|
<taxonomicName id="6DD55BB33DF520CACDC1DAA350DA2AE6" lsidName="S. khoratensis" pageId="0" pageNumber="1" rank="species" species="khoratensis">
|
|
<emphasis id="72F31E98102CDCA7258040C3C2240CFE" italics="true" pageId="0" pageNumber="1">S. khoratensis</emphasis>
|
|
</taxonomicName>
|
|
dentary teeth, where the crowns appear to be apicobasally erect, whereas in
|
|
<taxonomicName id="8C9C67F146D87CA723441C5D1F8709CA" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="52353C2CEACF510518249A04D63B7ED3" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
, the dentary teeth appear to be curved apicobasally.
|
|
<bibRefCitation id="FB8C491768217678FF332CAB2D06F886" DOI="https://doi.org/10.1371/journal.pone.0145904" author="Shibata, M" journalOrPublisher="Acta Geologica Sinica - English Edition" pageId="0" pageNumber="1" refId="B125" refString="Shibata, M, Jintasakul, P, Azuma, Y, You, H-L, 2015. A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10(12): e0145904. https://doi.org/10.1371/journal.pone.0145904" title="A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10 (12): e 0145904." url="https://doi.org/10.1371/journal.pone.0145904" year="2015">Shibata et al. (2015)</bibRefCitation>
|
|
noted that there were no other accessory ridges on the crown of
|
|
<taxonomicName id="40DBE1F376EDF8E186B51990277E37B1" lsidName="S. khoratensis" pageId="0" pageNumber="1" rank="species" species="khoratensis">
|
|
<emphasis id="B85977A3061530602D9FC185A2A9AC6F" italics="true" pageId="0" pageNumber="1">S. khoratensis</emphasis>
|
|
</taxonomicName>
|
|
, but WNM-KS-001 shows at least one very faint accessory ridge on the mesial side. Small denticles are present on the mesial and distal margins of the upper half of the crown.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="7C0D98C8AC850D0783FDF80B61616243" pageId="0" pageNumber="1" type="comments">
|
|
<paragraph id="DBE13A0C515DA3E04C58B999563AA867" pageId="0" pageNumber="1">Comment.</paragraph>
|
|
<paragraph id="5DC4F223E72F08C5206612136F5D1FDA" pageId="0" pageNumber="1">
|
|
Some palaeontologists consider
|
|
<taxonomicName id="E772BF6AB1A82680EBBB059E5E4A208A" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="66DAC177502CDFB92109737868884B6A" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
a
|
|
<emphasis id="216B87FAF69200B6C4CEE489E5C1B359" italics="true" pageId="0" pageNumber="1">nomen dubium</emphasis>
|
|
as its material does not show any autapomorphic characters, and it might be referable to some of the other taxa from the same area (
|
|
<bibRefCitation id="0C30FFE6212D9FDA36BB9C957B247A5D" DOI="https://doi.org/10.1111/zoj.12193" author="Norman, DB" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="0" pageNumber="1" pagination="92 - 189" refId="B102" refString="Norman, DB, 2014. On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna). Zoological Journal of the Linnean Society 173 (1): 92 - 189, DOI: https://doi.org/10.1111/zoj.12193" title="On the history, osteology, and systematic position of the Wealden (Hastings group) dinosaur Hypselospinus fittoni (Iguanodontia: Styracosterna)." url="https://doi.org/10.1111/zoj.12193" volume="173" year="2014">Norman 2014</bibRefCitation>
|
|
). However,
|
|
<bibRefCitation id="53DB33758B07B01D716783B8675A2F5B" DOI="https://doi.org/10.1371/journal.pone.0145904" author="Shibata, M" journalOrPublisher="Acta Geologica Sinica - English Edition" pageId="0" pageNumber="1" refId="B125" refString="Shibata, M, Jintasakul, P, Azuma, Y, You, H-L, 2015. A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10(12): e0145904. https://doi.org/10.1371/journal.pone.0145904" title="A New Basal Hadrosauroid Dinosaur from the Lower Cretaceous Khok Kruat Formation in Nakhon Ratchasima Province, Northeastern Thailand. PLoS ONE 10 (12): e 0145904." url="https://doi.org/10.1371/journal.pone.0145904" year="2015">Shibata et al. (2015)</bibRefCitation>
|
|
showed the possibility of three iguanodontians in the Khok Kruat Formation. The holotype specimen of
|
|
<taxonomicName id="1A2C87024E86A85B7C20392CE2755B17" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="69F551092592F4C63E14C43EB15AE42F" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="3917108D238A9ED59C943199D6B98111" lsidName="S. khoratensis" pageId="0" pageNumber="1" rank="species" species="khoratensis">
|
|
<emphasis id="F13AF298DD105D9D936B30535F116CFC" italics="true" pageId="0" pageNumber="1">S. khoratensis</emphasis>
|
|
</taxonomicName>
|
|
maxilla (NRRU-A2048) are similar in size. They likely to belong to same growth stage, but have distinct physical characteristics suggesting that they represent different animals, while comparisons to
|
|
<taxonomicName id="5A86CA41B4DA0BBFC04F5FBC74A7E640" lsidName="R. suranareae" pageId="0" pageNumber="1" rank="species" species="suranareae">
|
|
<emphasis id="868B8BF1DE07A627BF67DE2EB56A8572" italics="true" pageId="0" pageNumber="1">R. suranareae</emphasis>
|
|
</taxonomicName>
|
|
are not feasible as overlapping material has not been discovered.
|
|
</paragraph>
|
|
<paragraph id="7DAB0A509413D4007EF630D3A99C4104" pageId="0" pageNumber="1">
|
|
There has been some disagreement about the type locality of
|
|
<taxonomicName id="38398B6C9B622BEA955DB729D17BE8FD" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="E425847440AE0D35781624DF65C17CDC" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
given by Shibata and his team, and Buffetaut and Suteethorn; however, we would like to confirm that, after corroboration from the holotype collector, Mr. Witaya Nimngam, we now know that the type locality of
|
|
<taxonomicName id="01BE8071EFD09C237BBB890715BDC2B4" lsidName="S. nimngami" pageId="0" pageNumber="1" rank="species" species="nimngami">
|
|
<emphasis id="BAE25E3B587EE3F76E64CC53614EFC1B" italics="true" pageId="0" pageNumber="1">S. nimngami</emphasis>
|
|
</taxonomicName>
|
|
is at Ban Saphan Hin. This is far from the type locality of
|
|
<taxonomicName id="F7FE16A1BEE246DD379D95406B685149" lsidName="S. khoratensis" pageId="0" pageNumber="1" rank="species" species="khoratensis">
|
|
<emphasis id="19E1B6707E43347A7B7743181BC6D8EB" italics="true" pageId="0" pageNumber="1">S. khoratensis</emphasis>
|
|
</taxonomicName>
|
|
and definitely not from Ban Nong Rangka as previously suggested (Fig.
|
|
<figureCitation id="CA6D69BA8AB8DD082A67EC8B8F2A23A7" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Locality map of Nakhon Ratchasima Province, showing localities of Siamodon, Ratchasimasaurus and Sirindhorna." figureDoi="10.3897/fr.26.e93456.figure7" httpUri="https://binary.pensoft.net/fig/793765" pageId="0" pageNumber="1">7</figureCitation>
|
|
).
|
|
</paragraph>
|
|
<caption id="80846A57A97A61F718BD6D61764E6324" doi="10.3897/fr.26.e93456.figure7" httpUri="https://binary.pensoft.net/fig/793765" pageId="0" pageNumber="1" start="Figure 7" startId="F7">
|
|
<paragraph id="3F9B68C00FBC7730D78AD45767CF3BE1" pageId="0" pageNumber="1">
|
|
<emphasis id="59E1A9FB016BE099EBB1E4D2BDA3D0B2" bold="true" pageId="0" pageNumber="1">Figure 7.</emphasis>
|
|
Locality map of Nakhon Ratchasima Province, showing localities of
|
|
<taxonomicName id="0CB3D838ADC25E31CD1CE6C9A0743B41" family="Hadrosauridae" genus="Siamodon" kingdom="Animalia" lsidName="Siamodon" order="Ornithischia" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="3CE9DD9E5C9DE0D82F33140F1C6CCAD6" italics="true" pageId="0" pageNumber="1">Siamodon</emphasis>
|
|
</taxonomicName>
|
|
,
|
|
<taxonomicName id="02C6588450FBE8274DD77BB505CEC2E3" family="Hadrosauridae" genus="Ratchasimasaurus" kingdom="Animalia" lsidName="Ratchasimasaurus" order="Ornithischia" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="98A4C24ED93670F25AB0EDA9AB9C139A" italics="true" pageId="0" pageNumber="1">Ratchasimasaurus</emphasis>
|
|
</taxonomicName>
|
|
and
|
|
<taxonomicName id="6C6E2E4B072475411DB1E562EF29AE3F" family="Hadrosauridae" genus="Sirindhorna" kingdom="Animalia" lsidName="Sirindhorna" order="Ornithischia" pageId="0" pageNumber="1" rank="genus">
|
|
<emphasis id="BAE956AE9F7063C5862309E4945D3A7B" italics="true" pageId="0" pageNumber="1">Sirindhorna</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
</caption>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |