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Glyptodonts of North America

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dc.contributor.author Gillette, David D. en
dc.contributor.author Ray, Clayton E. en
dc.date.accessioned 2007-07-31T16:36:25Z
dc.date.available 2007-07-31T16:36:25Z
dc.date.issued 1981
dc.identifier.citation Gillette, David D. and Ray, Clayton E. 1981. "<a href="http%3A%2F%2Fdx.doi.org%2F10.5479%2Fsi.00810266.40.1">Glyptodonts of North America</a>." <em>Smithsonian Contributions to Paleobiology</em>. 1&ndash;255. <a href="https://doi.org/10.5479/si.00810266.40.1">https://doi.org/10.5479/si.00810266.40.1</a> en
dc.identifier.issn 0081-0266
dc.identifier.uri http://hdl.handle.net/10088/1966
dc.identifier.uri http://dx.doi.org/10.5479/si.00810266.40.1
dc.description.abstract All known North American glyptodonts belong in the genus <I>Glyptotherium</I> Osborn, 1903 (Family Glyptodontidae, Subfamily Glyptodontinae). Junior synonyms are <I>Brachyostracon</I> Brown, 1912; <I>Boreostracon</I> Simpson, 1929; <I>Xenoglyptodon</I> Meade, 1953; and all assignments of North American specimens to <I>Glyptodon</I> Owen, 1838. The ancestral species is <I>Glyptotherium texanum</I> from the Early Pleistocene Tusker (Arizona) and Blanco (Texas) local faunas of the Blancan Land Mammal Age; <I>G. texanum</I> is smaller and lacks many of the exaggerated features of the descendant species. The descendant species are <I>G. arizonae</I> (Blancan? and Irvingtonian); <I>G. floridanum</I> (Rancholabrean); and two species known from isolated localities in Mexico, <I>G. cylindricum</I> and <I>G. mexicanum</I>. The taxonomic validity of <I>G. mexicanum</I> is questionable.<br/>The geographic distribution and faunal associations of <I>Glyptotherium</I> clearly indicate tropical or subtropical habitats. North American glyptodonts exhibit extreme tendencies toward hypsodonty and homodonty in the dentition, and they lack both incisiform and caniniform teeth. They probably fed on soft vegetation near permanent bodies of water. Graviportal limb proportions and details of the gross osteology suggest slow and cumbersome locomotion, which probably precluded occupation of upland habitats.<br/>A substantial expansion in the number of specimens available for study has extensively improved our knowledge of the gross osteology of <I>Glyptotherium</I>, especially for <I>G. texanum</I> and <I>G. arizonae</I>. en
dc.format.extent 147455091 bytes
dc.format.extent 10028151 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof Smithsonian Contributions to Paleobiology en
dc.title Glyptodonts of North America en
dc.type Journal Article en
dc.identifier.srbnumber 113460
dc.identifier.eISSN 1943-6688
dc.identifier.doi 10.5479/si.00810266.40.1
rft.jtitle Smithsonian Contributions to Paleobiology
rft.issue 40
rft.spage 1
rft.epage 255
dc.description.SIUnit SISP en
dc.citation.spage 1
dc.citation.epage 255
dc.relation.url http://dx.doi.org/10.5479/si.00810266.40.1


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