Arminiheringia Arminiheringia Arminiheringia
Arminiheringia
Arminiheringia
Arminiheringia

Arminiheringia

Arminiheringia (Arminiheringia Ameghino, 1902)

Synonyms: Dilestes dilobus

 

Infraclass: Metatheria

Order: †Sparassodonta

Superfamily: Borhyaenoidea

Family: †Proborhyaenidae

Dimensions: length - 1,4 m, height - 60 сm, weight - 40-80 kg

Temporal range: Eocene in South America

 

 

Proborhyaenidae is an extinct family of metatherians mammals of the order Sparassodonta, which lived in South America since the Eocene (Casamayoran) until the Oligocene (Deseadan). Sometimes it have been included as a subfamily of their relatives borhyaenids (as Proborhyaeninae). Members of this family were carnivores, usually large, being among the largest representatives of the sparassodonts and carnivore metatherians; the species Proborhyaena gigantea could reach 600 kg, a size comparable to the bears.

The proborhyaenids were characterized by a large and massive skull with molars specialized in meat consumption (carnassials) and their canines lacked of teeth enamel in preserved specimens; probably it have been very thin or restricted to the tips in life. In the genus Aminiheringia the lower canines are also protudring. These teeth, as in the thylacosmilids had an open root even as adults, so that these teeth could grow continuously. This feature was suggested as evidence of their close kinship with Thylacosmilus, but this hypothesis has been ruled out.

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Arminiheringia (Arminiheringia Ameghino, 1902)

Synonyms: Dilestes dilobus

 

Infraclass: Metatheria

Order: †Sparassodonta

Superfamily: Borhyaenoidea

Family: †Proborhyaenidae

Dimensions: length - 1,4 m, height - 60 сm, weight - 40-80 kg

Temporal range: Eocene in South America

 

 

Proborhyaenidae is an extinct family of metatherians mammals of the order Sparassodonta, which lived in South America since the Eocene (Casamayoran) until the Oligocene (Deseadan). Sometimes it have been included as a subfamily of their relatives borhyaenids (as Proborhyaeninae). Members of this family were carnivores, usually large, being among the largest representatives of the sparassodonts and carnivore metatherians; the species Proborhyaena gigantea could reach 600 kg, a size comparable to the bears.

The proborhyaenids were characterized by a large and massive skull with molars specialized in meat consumption (carnassials) and their canines lacked of teeth enamel in preserved specimens; probably it have been very thin or restricted to the tips in life. In the genus Aminiheringia the lower canines are also protudring. These teeth, as in the thylacosmilids had an open root even as adults, so that these teeth could grow continuously. This feature was suggested as evidence of their close kinship with Thylacosmilus, but this hypothesis has been ruled out.

Відгуки (5):
me
12.11.2019
When did it go extinct?
Митрич
09.11.2018
Отличная реконструкция хорошо узнаваемых для "великолепной изоляции" боргиенид!
Doctor plaga
07.05.2018
nunca crei que este mamifero carnivoro fuera de ese tamaño
rom
27.08.2013
Thank you! Yes, this genus live in Eocene and early Oligocene.
Hello there
27.08.2013
Good picture.

Question. Did this particular genus of proborhyaenids live in the oligocene or eocene?