Reappraisal of the holotype of "Testudo" costarricensis, a tortoise supposedly from the Oligocene of Lower Miocene of Costa Rica
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| Autoři: | , , |
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| Médium: | artículo original |
| Stav: | Versión publicada |
| Datum vydání: | 2018 |
| Popis: | “Testudo” costarricensis was described as a basal tortoise from the Oligocene or lower Miocene of Costa Rica and considered as evidence of a migration of tortoises from North America to South America to provide an ancestor to the modern genus Chelonoides. However, this was based on an incorrect reconstruction of the holotype carapace and plastron of T. costarricensis, which, when corrected, is identical to the North American Oligocene tortoise Oligopherus laticunea. Furthermore, there are no continental sedimentary rocks of Oligocene to Miocene age at the purported type locality nor does the matrix associated with the holotype of T. costarricensis match any sediment found there. T. costarricensis thus, apparently, is not a tortoise from the Miocene of Costa Rica. Instead, it was likely based on a specimen of Oligopherus laticunea from the United States. |
| Země: | Portal de Revistas UCR |
| Instituce: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Jazyk: | Inglés |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/34156 |
| On-line přístup: | https://revistas.ucr.ac.cr/index.php/geologica/article/view/34156 |
| Klíčové slovo: | Costa Rica tortoise Miocene turtles Testudo costarricensis Oligopherus laticunea tortuga Mioceno tortugas |