Trigonostylops
Trigonostylops | |
---|---|
Trigonostylops skull. | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Superorder: | †Meridiungulata |
Order: | †Astrapotheria |
Family: | †Trigonostylopidae |
Genus: | †Trigonostylops Ameghino 1897 |
Type species | |
Trigonostylops wortmani Ameghino, 1897 |
Trigonostylops is an extinct genus of South American meridiungulatan ungulate, from the Late Paleocene to Late Eocene of Argentina and Peru.
Description
A complete skull of the type species, T. wortmani, has been found, and it has been classified as an astrapothere based on its large lower tusks. In comparison with the later Astrapotherium magnum, it is estimated to have been around 1.50 m (5 ft) long.[1] Teeth, primarily molars, have been found and assigned to other species.
Phylogeny
Cladogram based in the phylogenetic analysis published by Vallejo-Pareja et al., 2015, showing the position of Trigonostylops:[2]
Eoastrapostylops | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Distribution
Fossils of Trigonostylops have been found in:[3]
- Paleocene
- Las Flores Formation, Argentina
- Eocene
References
Wikimedia Commons has media related to Trigonostylops. |
- ↑ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 249. ISBN 1-84028-152-9.
- ↑ Vallejo-Pareja, M. C.; Carrillo, J. D.; Moreno-Bernal, J. W.; Pardo-Jaramillo, M.; Rodriguez-Gonzalez, D. F.; Muñoz-Duran, J. (2015). "Hilarcotherium castanedaii, gen. et sp. nov., a new Miocene astrapothere (Mammalia, Astrapotheriidae) from the Upper Magdalena Valley, Colombia" (PDF). Journal of Vertebrate Paleontology. 35 (2): e903960. doi:10.1080/02724634.2014.903960. (Subscription required (help)).
- ↑ Trigonostylops at Fossilworks.org
This article is issued from
Wikipedia.
The text is licensed under Creative Commons - Attribution - Sharealike.
Additional terms may apply for the media files.