142 lines
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142 lines
15 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/zookeys.223.2840" ID-GBIF-Dataset="b9b1f5ed-fec1-474c-a014-f0fbb309f54b" ID-PMC="PMC3491919" ID-Pensoft-Pub="1313-2970-226-1" ID-PubMed="23166462" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-226-1" ModsDocOrigin="ZooKeys 226" ModsDocTitle="Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs" checkinTime="1451248705912" checkinUser="pensoft" docAuthor="Sereno, Paul C." docDate="2012" docId="29542F7B49611683D4CE343A301D6622" docLanguage="en" docName="ZooKeys 226: 1-225" docOrigin="ZooKeys 226" docSource="http://dx.doi.org/10.3897/zookeys.223.2840" docTitle="Heterodontosauridae Kuhn 1966" docType="treatment" docVersion="4" lastPageNumber="13" masterDocId="FFFCFF9FFF9B1434FFE8FF88BA74FFB7" masterDocTitle="Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs" masterLastPageNumber="225" masterPageNumber="1" pageNumber="12" updateTime="1668154520870" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Sereno, Paul C.</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2012</mods:date>
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<mods:detail type="volume">
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<mods:number>226</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>225</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.223.2840</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.223.2840</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-226-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152037246" LSID="urn:lsid:plazi:treatment:29542F7B49611683D4CE343A301D6622" httpUri="http://treatment.plazi.org/id/29542F7B49611683D4CE343A301D6622" lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
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<subSubSection pageId="11" pageNumber="12" type="nomenclature">
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<paragraph pageId="11" pageNumber="12">
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<taxonomicName LSID="http://species-id.net/wiki/Heterodontosauridae" authority="Kuhn, 1966" authorityName="Kuhn" authorityYear="1966" family="Heterodontosauridae" lsidName="" pageId="11" pageNumber="12" rank="family">Heterodontosauridae Kuhn, 1966</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12" type="emended diagnosis">
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<paragraph pageId="11" pageNumber="12">Emended diagnosis.</paragraph>
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<paragraph lastPageId="12" lastPageNumber="13" pageId="11" pageNumber="12">
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Small-bodied ornithischians with the following features that may constitute heterodontosaurid synapomorphies in phylogenetic context: (1) three or fewer premaxillary teeth; (2) premaxillary teeth increase in size distally; (3) dentary caniniform tooth associated with an arched premaxilla-maxilla diastema; (4) nasal fossa, dorsomedian
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<pageBreakToken pageId="12" pageNumber="13" start="start">with</pageBreakToken>
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rounded lateral margins; (5) jugal flange, ventral embayment of jugal-quadratojugal embayment; (6) jugal horn below orbit, laterally directed and dorsoventrally compressed; (7) postorbital body, arcuate fossa with raised anterior rim; (8) quadrate head included within laterotemporal fossa; (9) quadrate condyle, articular surface ventrolaterally inclined at approximately 30°; (10) quadratojugal T-shaped; (11) predentary processes (lateral, ventral) rudimentary; (12) dentary ramus stoutly proportioned, substantial depth at mid ramus compared to length; (13) fibular mid-shaft and distal end reduced.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="12" pageNumber="13" type="phylogenetic definition">
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<paragraph pageId="12" pageNumber="13">Phylogenetic definition.</paragraph>
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<paragraph pageId="12" pageNumber="13">
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The most inclusive clade containing
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<taxonomicName class="Reptilia" family="Heterodontosauridae" genus="Heterodontosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Heterodontosaurus tucki" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="tucki">Heterodontosaurus tucki</taxonomicName>
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<bibRefCitation author="Crompton, AW" journalOrPublisher="Nature" pageId="161" pageNumber="162" pagination="1074 - 1077" title="A new ornithischian from the Upper Triassic of South Africa." url="10.1038/1961074a0" volume="196" year="1962">Crompton and Charig 1962</bibRefCitation>
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but not
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<taxonomicName class="Reptilia" family="Lambeosauridae" genus="Parasaurolophus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Parasaurolophus walkeri" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="walkeri">Parasaurolophus walkeri</taxonomicName>
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<bibRefCitation author="Parks, WA" journalOrPublisher="University of Toronto Studies (Geological Series)" pageId="163" pageNumber="164" pagination="1 - 32" title="Parasaurolophus walkeri, a new genus and species of crested trachodont dinosaur." volume="13" year="1922">Parks 1922</bibRefCitation>
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,
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<taxonomicName class="Reptilia" family="Pachycephalosauridae" genus="Pachycephalosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Pachycephalosaurus wyomingensis" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="wyomingensis">Pachycephalosaurus wyomingensis</taxonomicName>
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(
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<bibRefCitation author="Gilmore, CW" journalOrPublisher="Proceedings of the United States National Museum" pageId="161" pageNumber="162" pagination="1 - 6" title="A new species of trooedont dinosaur from the Lance Formation of Wyoming." url="10.5479/si.00963801.79-2875.1" volume="79" year="1931">Gilmore 1931</bibRefCitation>
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),
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<taxonomicName class="Reptilia" family="Ceratopsidae" genus="Triceratops" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Triceratops horridus" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="horridus">Triceratops horridus</taxonomicName>
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<bibRefCitation pageId="12" pageNumber="13">Marsh 1889</bibRefCitation>
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,
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<taxonomicName class="Reptilia" family="Ankylosauridae" genus="Ankylosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Ankylosaurus magniventris" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="magniventris">Ankylosaurus magniventris</taxonomicName>
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<bibRefCitation author="Brown, B" journalOrPublisher="Bulletin of the American Museum of Natural History" pageId="161" pageNumber="162" pagination="187 - 201" title="The Ankylosauridae, a new family of armored dinosaurs from the Upper Cretaceous." volume="24" year="1908">Brown 1908</bibRefCitation>
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.
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</paragraph>
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<paragraph pageId="12" pageNumber="13">
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This stem-based phylogenetic definition (
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<bibRefCitation pageId="12" pageNumber="13">Sereno 2005b</bibRefCitation>
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) includes, but does not reach beyond, all currently known heterodontosaurids under all proposed phylogenetic interpretations of the position of heterodontosaurids within Ornithischia (e.g.,
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<bibRefCitation author="Sereno, PC" journalOrPublisher="Science" pageId="163" pageNumber="164" pagination="2137 - 2147" title="The evolution of dinosaurs." url="10.1126/science.284.5423.2137" volume="284" year="1999">Sereno 1999</bibRefCitation>
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;
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<bibRefCitation author="Butler, RJ" journalOrPublisher="Journal of Vertebrate Paleontology" pageId="161" pageNumber="162" pagination="702 - 711" title="A juvenile skull of the primitive ornithischian dinosaur Heterodontosaurus tucki from the ' Stormberg' of southern Africa." url="10.1671/0272-4634(2008)28[702:AJSOTP]2.0.CO;2" volume="28" year="2008">Butler et al. 2008</bibRefCitation>
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). The first and only previous phylogenetic definition proposed for
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<taxonomicName family="Heterodontosauridae" lsidName="" pageId="12" pageNumber="13" rank="family">Heterodontosauridae</taxonomicName>
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(
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<bibRefCitation author="Sereno, PC" journalOrPublisher="Neues Jahrbuch fuer Geologie und Palaeontologie Abhandlungen" pageId="163" pageNumber="164" pagination="41 - 83" title="A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria." volume="210" year="1998">Sereno 1998</bibRefCitation>
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: 61) is similar but lacks the negative specifiers of the present definition that stabilize its taxonomic content under alternative phylogenetic relationships.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="12" pageNumber="13" type="temporal and geographic range">
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<paragraph pageId="12" pageNumber="13">Temporal and geographic range.</paragraph>
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<paragraph pageId="12" pageNumber="13">
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Late Triassic (Norian) to Early Cretaceous (Barremian-Aptian), ca. 216-125 Ma (
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<bibRefCitation pageId="12" pageNumber="13">Gradstein and Ogg 2009</bibRefCitation>
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;
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<bibRefCitation author="Martinez, RN" journalOrPublisher="Science" pageId="162" pageNumber="163" pagination="206 - 210" title="A basal dinosaur from the dawn of the dinosaur era in southwestern Pangaea." url="10.1126/science.1198467" volume="331" year="2011">Martinez et al. 2011</bibRefCitation>
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); global distribution includes northern localities (northern China, western North America, Europe) and southern localities (southern South America, southern Africa) (Fig. 1). The record of heterodontosaurids from the Late Triassic currently depends upon the interpretation of the poorly known
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<taxonomicName class="Reptilia" family="Pisanosauridae" genus="Pisanosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Pisanosaurus mertii" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="mertii">Pisanosaurus mertii</taxonomicName>
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(
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<bibRefCitation author="Bonaparte, JF" journalOrPublisher="Journal of Paleontology" pageId="161" pageNumber="162" pagination="808 - 820" title="Pisanosaurus mertii Casamiquela and the origin of the Ornithischia." volume="50" year="1976">Bonaparte 1976</bibRefCitation>
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;
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<bibRefCitation pageId="12" pageNumber="13">Sereno 1991</bibRefCitation>
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) and other fragmentary remains from Upper Triassic rocks elsewhere in Argentina (
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<bibRefCitation author="Baez, AM" journalOrPublisher="Ameghiniana" pageId="161" pageNumber="162" pagination="271 - 279" title="A heterodontosaurid ornithischian dinosaur from the Upper Triassic of Patagonia." volume="38" year="2001">
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<normalizedToken originalValue="Báez">Baez</normalizedToken>
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and Marsicano 2001
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</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="12" pageNumber="13" type="comments">
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<paragraph pageId="12" pageNumber="13">Comments.</paragraph>
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<paragraph pageId="12" pageNumber="13">
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<bibRefCitation author="Kuhn, O" journalOrPublisher="Verlag Oeben, Krailling near Munich" pageId="162" pageNumber="163" title="Die Reptilien." year="1966">Kuhn (1966)</bibRefCitation>
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is identified as the author of the taxon
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<taxonomicName family="Heterodontosauridae" lsidName="" pageId="12" pageNumber="13" rank="family">Heterodontosauridae</taxonomicName>
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, although
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<bibRefCitation author="Romer, AS" journalOrPublisher="University of Chicago Press, Chicago" pageId="163" pageNumber="164" title="Vertebrate Paleontology, 3 rd ed." year="1966">Romer (1966)</bibRefCitation>
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independently proposed the same taxon in the same year (synchronous publication noted by
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<bibRefCitation author="Kuhn, O" journalOrPublisher="Gustav Fischer Verlag, Stuttgart" pageId="162" pageNumber="163" title="Amphibien und Reptilien." year="1967">Kuhn 1967</bibRefCitation>
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: 77, 122). In the literature, some cite Romer as the author of the taxon (e.g.,
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<bibRefCitation pageId="12" pageNumber="13">Smith 1997</bibRefCitation>
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;
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<bibRefCitation author="Sereno, PC" journalOrPublisher="Neues Jahrbuch fuer Geologie und Palaeontologie Abhandlungen" pageId="163" pageNumber="164" pagination="41 - 83" title="A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria." volume="210" year="1998">Sereno 1998</bibRefCitation>
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;
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<bibRefCitation pageId="12" pageNumber="13">Sereno 2005b</bibRefCitation>
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), some Kuhn (e.g.,
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<bibRefCitation author="Norman, DB" editor="Weishampel, DB" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="162" pageNumber="163" title="University of California Press, Berkeley" url="10.1525/california/9780520242098.003.0021" year="2004">Norman et al. 2004</bibRefCitation>
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,
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<bibRefCitation author="Norman, DB" journalOrPublisher="Zoological Journal of the Linnean Society" pageId="162" pageNumber="163" pagination="182 - 279" title="The Lower Jurassic ornithischian dinosaur Heterodontosaurus tucki Crompton and Charig 1962: cranial anatomy, functional morphology, taxonomy, and relationships." volume="162" year="2011">2011</bibRefCitation>
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), and some Kuhn and Romer with one author in parentheses (e.g.,
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<bibRefCitation author="Steel, R" journalOrPublisher="Handbuch der Palaeoherpetologie" pageId="164" pageNumber="165" pagination="1 - 84" title="Ornithischia." volume="15" year="1969">Steel 1969</bibRefCitation>
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). Establishing priority by publication date in this case is no longer possible, and, unlike Romer, Kuhn also briefly diagnosed the family-level taxon. Here Kuhn is recognized as the author of
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<taxonomicName family="Heterodontosauridae" lsidName="" pageId="12" pageNumber="13" rank="family">Heterodontosauridae</taxonomicName>
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(P. Galton, pers. comm.).
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</paragraph>
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<paragraph pageId="12" pageNumber="13">
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Many of the cranial and postcranial apomorphies listed in the emended diagnosis were known previously only in
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<taxonomicName class="Reptilia" family="Heterodontosauridae" genus="Heterodontosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Heterodontosaurus tucki" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="tucki">Heterodontosaurus tucki</taxonomicName>
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but now are known in at least one other heterodontosaurid. When coded into a phylogenetic analysis, some of these features might be repositioned at nodes within
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<taxonomicName family="Heterodontosauridae" lsidName="" pageId="12" pageNumber="13" rank="family">Heterodontosauridae</taxonomicName>
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(under delayed transformation), given the large amount of missing data in known taxa. The list, nonetheless, attempts to capture as many skeletal modifications that are shared by
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<taxonomicName class="Reptilia" family="Heterodontosauridae" genus="Heterodontosaurus" higherTaxonomySource="GBIF" kingdom="Animalia" lsidName="Heterodontosaurus tucki" order="Ornithischia" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="tucki">Heterodontosaurus tucki</taxonomicName>
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and at least one other basal heterodontosaurid and may characterize the group. The features listed are discussed in more detail below (under Heterodontosaurid monophyly) and in Appendix I.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |