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 |
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dc.identifier.citation |
Steadman, David W. and Ray, Clayton E. 1982. <em><a href="https://repository.si.edu/handle/10088/19143">Relationships of <i>Megaoryzomys curioi</i>, an Extinct Cricetine Rodent (Muroidea: Muridae) from the Galápagos Islands, Ecuador</a></em>. Washington, D.C.: Smithsonian Institution. In <em>Smithsonian Contributions to Paleobiology</em>, 51. <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 |
nmnh |
en |
dc.description.SIUnit |
nh-paleobiology |
en |