Acyon
| Acyon Temporal range:
| |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Sparassodonta |
| Family: | †Hathliacynidae |
| Genus: | †Acyon Ameghino, 1887 |
| Type species | |
| Acyon tricuspidatus Ameghino, 1897
| |
| Other species | |
| |
Acyon is an extinct genus of hathliacynid sparassodonts that lived in South America during the Miocene epoch.[1]
Description
Acyon myctoderos is distinguished from Acyon herrerae by virtue of the former possessing less sectorial premolars than the latter and the former having a distinctive posterior cusp on the P2 that the latter species lacks. A. myctoderos differs from both A. herrerae and Acyon tricuspidatus in that A. myctoderos has more vertically oriented hypoconulids and larger hypoconids on M1-3.[2]
References
- ^ "Acyon". Paleobiology Database. Retrieved 3 May 2026.
- ^ Engelman, Russell K.; Anaya, Federico; Croft, Darin Andrew (1 April 2015). "New Specimens of Acyon myctoderos (Metatheria, Sparassodonta) from Quebrada Honda, Bolivia". Ameghiniana. 52 (2): 204. doi:10.5710/AMGH.19.11.2014.2803. ISSN 0002-7014. Retrieved 3 May 2026 – via BioOne Digital Library.