Extinct and extant sand dollars (Clypeasteroida: Echinoidea) from Uruguay
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| Autores: | , |
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| 格式: | artículo original |
| 狀態: | Versión publicada |
| Fecha de Publicación: | 2005 |
| 實物特徵: | We summarize information concerning Recent and Pleistocene-Holocene Uruguayan sand dollars (Mellitidae), as well as Miocene taxa (Monophorasteridae). Recent and Pleistocene-Holocene species (Encope emarginata, Mellita quinquiesperforata, and Leodia sexisperforata) are at their southernmost limits of distribution, with only E. emarginata recorded further south than Uruguay. Lower temperatures to the south, and/or the Rio de la Plata salinity barrier are suggested as controlling factors of these distributions. During the Miocene, the sea temperatures were notably higher than at present, and it was at this time that the extinct genera Monophoraster and Amplaster reached their maximum diversity in Uruguay. The family Monophorasteridae is the basal sister group of the Mellitidae. Rev. Biol. Trop. 53(Suppl. 3): 1-7. Epub 2006 Jan 30. |
| País: | Portal de Revistas UCR |
| 機構: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 語言: | Inglés |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/26662 |
| 在線閱讀: | https://archivo.revistas.ucr.ac.cr/index.php/rbt/article/view/26662 |
| Palabra clave: | Echinoidea Monophorasteridae Mellitidae Tertiary Uruguay Monophasteridae Terciario |