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Relationships of <I>Megaoryzomys curioi</I>, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador

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dc.contributor.author Steadman, David W. en
dc.contributor.author Ray, Clayton E. en
dc.date.accessioned 2012-10-24T13:47:32Z
dc.date.available 2012-10-24T13:47:32Z
dc.date.issued 1982
dc.identifier.citation Steadman, David W. and Ray, Clayton E. 1982. "<a href="http%3A%2F%2Fdx.doi.org%2F10.5479%2Fsi.00810266.51.1">Relationships of Megaoryzomys curioi, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador</a>." <em>Smithsonian Contributions to Paleobiology</em>. 1&ndash;23. <a href="https://doi.org/10.5479/si.00810266.51.1">https://doi.org/10.5479/si.00810266.51.1</a> en
dc.identifier.issn 0081-0266
dc.identifier.uri http://hdl.handle.net/10088/19143
dc.identifier.uri http://dx.doi.org/10.5479/si.00810266.51.1
dc.description.abstract <I>Megaoryzomys curioi</I> is a thomasomyine, not an oryzomyine as previously believed. This rodent was originally described, from three bony fragments found in a cave on Isla Santa Cruz, Galápagos, as a new species of the Antillean oryzomyine genus <I>Megalomys</I>. The genus <I>Megaoryzomys</I> was named recently for this species, based on new material from Isla Santa Cruz. Our study of additional material indicates that <I>Megaoryzomys curioi</I> is not closely related to <I>Oryzomys</I> but is most similar to large species of <I>Thomasomys</I>, a genus confined to mainland South America. The Galápagos have been colonized by cricetine rodents at least three times, once by a thomasomyine and twice by oryzomyines. Of these colonists, <I>Megaoryzomys curioi</I> is the most divergent from mainland relatives and thus is probably derived from the earliest immigrant. Although the time of extinction of <I>Megaoryzomys curioi</I> has not been determined, and it has never been recorded from life, it probably survived into historic time. en
dc.relation.ispartof Smithsonian Contributions to Paleobiology en
dc.title Relationships of <I>Megaoryzomys curioi</I>, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador en
dc.type Journal Article en
dc.identifier.srbnumber 113471
dc.identifier.doi 10.5479/si.00810266.51.1
rft.jtitle Smithsonian Contributions to Paleobiology
rft.issue 51
rft.spage 1
rft.epage 23
dc.description.SIUnit SISP en
dc.citation.spage 1
dc.citation.epage 23
dc.relation.url http://dx.doi.org/10.5479/si.00810266.51.1


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