Pachyrukhos
| Pachyrukhos | |
|---|---|
| Skeleton reconstruction | |
| Scientific classification Edit this classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Notoungulata |
| Family: | †Hegetotheriidae |
| Subfamily: | †Pachyrukhinae |
| Genus: | †Pachyrukhos Ameghino 1885 |
| Species | |
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| Synonyms | |
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Pachyrukhos is an extinct genus of hegetotheriid notoungulate from the Early to Middle Miocene (Colhuehuapian-Friasian in the SALMA classification) of Argentina and Chile. Fossils of this genus have been found in the Collón Curá, Sarmiento and Santa Cruz Formations of Argentina and the Río Frías Formation of Chile.[1] [failed verification ]
Description
[edit ]
It was about 30 centimetres (0.98 ft) long and closely resembled a rabbit, with a short tail and long hind feet. Pachyrukhos was probably also able to hop, and it had a rabbit-like skull with teeth adapted for eating nuts and tough plants. The complexity of its hearing apparatus in the skull suggests that its hearing would have been very good, and that it probably had large ears. It also had large eyes, suggesting that it may have been nocturnal. These similarities are the result of convergent evolution, since, while quite unrelated to modern rabbits, Pachyrukhos filled the same ecological niche.[2]
References
[edit ]- ^ Pachyrukhos at Fossilworks.org
- ^ Palmer, D., ed. (1999). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. p. 251. ISBN 1-84028-152-9.
This notoungulate-related article is a stub. You can help Wikipedia by expanding it.
- Typotheres
- Miocene mammals of South America
- Friasian
- Santacrucian
- Colhuehuapian
- Neogene Argentina
- Fossils of Argentina
- Neogene Chile
- Fossils of Chile
- Fossil taxa described in 1885
- Taxa named by Florentino Ameghino
- Prehistoric placental genera
- Austral or Magallanes Basin
- Golfo San Jorge Basin
- Santa Cruz Formation
- Sarmiento Formation
- Notoungulate stubs