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Extinct genus of litopterns From Wikipedia, the free encyclopedia
Diadiaphorus is an extinct genus of litoptern mammal from the Miocene of Argentina (Ituzaingó, Pinturas, Chiquimil and Santa Cruz Formations) and Bolivia (Nazareno Formation), South America.
Diadiaphorus | |
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D. majusculus skull. Collected from Santa Cruz, Patagonia, Argentina. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | †Litopterna |
Family: | †Proterotheriidae |
Subfamily: | †Proterotheriinae |
Genus: | †Diadiaphorus Ameghino, 1887 |
Type species | |
†Diadiaphorus majusculus Ameghino, 1887 | |
Species | |
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Synonyms | |
Genus synonymy
D. majusculus
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Diadiaphorus closely resembled a horse, but was only around 1.2 metres (3.9 ft) in body length with a weight 70 kilograms (150 lb), similar to a modern sheep.[1]
It had three toes, only one of which touched the ground. This toe had a large hoof; the two outer toes were rudimentary, much like those of early horses such as Merychippus. Unlike horses, however, Diadiaphorus lacked fused limb bones. Its skull was short and had a relatively large brain cavity. Judging from its low molars, Diadiaphorus ate soft vegetation, such as leaves.[2]
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