Parastrapotherium
| Parastrapotherium | |
|---|---|
| Parastrapotherium giganteum tooth | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Astrapotheria |
| Family: | †Astrapotheriidae |
| Genus: | † Ameghino 1895 |
| Species | |
|
See text | |
Parastrapotherium is an extinct genus of South American land mammal that existed from the Late Oligocene (Deseadan SALMA) to the Early Miocene (Colhuehuapian SALMA). The genus includes some of the largest and smallest known astrapotherians, but As of 2008 has no generally recognized description.[1]
Description
The genus was first described by Amagehino in 1895.[2] He distinguished it from the Santacrucian (late Early Miocene) Astrapotherium based on the greater number of upper and lower molars. Although later researchers disagreed and concluded that Ameghino based his conclusion on very fragmentary materials, they mostly agreed to distinguish the genus from other groups of astrapotherians.[1]
Species
The following species have been recognised:[3]
- Parastrapotherium cingulatum Ameghino, 1894
- Parastrapotherium ephebicum Ameghino, 1894
- Parastrapotherium holmbergi Ameghino, 1894
- Parastrapotherium lemoinei Ameghino, 1894
- Parastrapotherium trouessarti Ameghino, 1894
Distribution
Fossils of Parastrapotherium have been found in:[3]
- Deseado Formation, Argentina
- Sarmiento Formation, Argentina
- Miocene
References
- ^ a b Kramarz & Bond 2008, Introduction
- ^ Ameghino 1895
- ^ a b Parastrapotherium at Fossilworks.org
Bibliography
- Ameghino, Florentino (1894). "Sur les oiseaux fossiles de Patagonie; et la faune mammalogique des couches à Pyrotherium". Boletin del Instituto Geográfico Argentino. 15: 501–660. OCLC 85042509.
- Ameghino, Florentino (1895). Première contribution à la connaissance de la faune mammalogique des couches à Pyrotherium. Buenos Aires: P.E. Coni. OCLC 40071157.
- Burmeister, Hermann (1879). Description physique de la République Argentine : d'après des observations personnelles et étrangères. Vol. 3 Animaux vertébrés, 1. partie, Mammifères vivants et éteints. Paris: Savy. p. 520. OCLC 162707154.
- Kramarz, Alejandro G.; Bond, Mariano (2008). "Revision of Parastrapotherium (Mammalia, Astrapotheria) and other Deseadan astrapotheres of Patagonia". Ameghiniana. 45 (3). Retrieved March 9, 2013.