| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Acyon
Taxonomy
Acyon was named by Ameghino (1887) [title: Enumeracion sistematica de las especies de mamiferos fosiles coleccionados por Carlos Ameghino en los terrenos eocenos de la Patagonia austral y depositados en el Museo La Plata]. Its type is Acyon tricuspidatus.
It was synonymized subjectively with Cladosictis by Marshall (1978); it was synonymized subjectively with Anatherium by Marshall (1981).
It was assigned to Acyonidae by Ameghino (1894); and to Hathliacynidae by Forasiepi et al. (2006).
It was synonymized subjectively with Cladosictis by Marshall (1978); it was synonymized subjectively with Anatherium by Marshall (1981).
It was assigned to Acyonidae by Ameghino (1894); and to Hathliacynidae by Forasiepi et al. (2006).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Acyon Ameghino p. 8 |
| 1894 | Acyon Ameghino p. 140 |
| 2006 | Acyon Forasiepi et al. |
Is something missing? Join the Paleobiology Database and enter the data
|
|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Acyon Ameghino 1887
show all | hide all
†Acyon myctoderos Forasiepi et al. 2006
†Acyon tricuspidatus Ameghino 1887
hide
Invalid names: Anatherium herrerae Marshall 1981 [synonym], Ictioborus destructor Ameghino 1894 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. M. Forasiepi et al. 2006 | largest known hathliacynid (length of skull up to 180 mm; for other hathliacynids see Marshall, 1981); dentary long, low, and gracile; large diastemata separating p1 from canine and p2; premolars strongly laterally compressed; talonids of m1–m3 without entoconid (autapomorphy, character 45). |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
| Source: subo = suborder, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Goin 1997, Clemens 1979, Lillegraven 1979, Hendy et al. 2009 | |||||
Age range: base of the Colhuehuapian to the top of the Laventan or 21.00000 to 11.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Colhuehuapian | Argentina (Chubut) | Anatherium herrerae (141368) | |
| Santacrucian | Argentina (Santa Cruz) | A. tricuspidatus (27313 176563 176593) Ictioborus destructor (176594) | |
| Laventan | Bolivia (Tarija) | A. myctoderos (38071) |