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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. <em><a href="https://doi.org/10.5479/si.00810266.51.1">Relationships of Megaoryzomys curioi, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador</a></em>. Washington, D.C.: Smithsonian Institution. <a href="https://doi.org/10.5479/si.00810266.51.1">https://doi.org/10.5479/si.00810266.51.1</a> en
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.title Relationships of <I>Megaoryzomys curioi</I>, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador en
dc.type Book, Whole en
dc.identifier.srbnumber 113471
dc.identifier.doi 10.5479/si.00810266.51.1
dc.description.SIUnit SISP en
dc.relation.url https://doi.org/10.5479/si.00810266.51.1


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