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Hypisodontidae
Taxonomy
Hypisodontinae was named as a subfamily. It is not extant.
It was reranked as the family Hypisodontidae by Vislobokova (2001) and Korth et al. (2022).
It was assigned to Hypertragulidae by Matthew (1908), Scott (1940) and Gazin (1955); to Hypertraguloidea by Vislobokova (2001); and to Artiodactyla by Korth et al. (2022).
It was reranked as the family Hypisodontidae by Vislobokova (2001) and Korth et al. (2022).
It was assigned to Hypertragulidae by Matthew (1908), Scott (1940) and Gazin (1955); to Hypertraguloidea by Vislobokova (2001); and to Artiodactyla by Korth et al. (2022).
Subtaxa
Synonymy list
Year | Name and author |
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1908 | Hypisodontinae Matthew p. 561 |
1940 | Hypisodontinae Scott p. 524 |
1955 | Hypisodontinae Gazin p. 44 |
2001 | Hypisodontidae Vislobokova p. S136 |
2022 | Hypisodontidae Korth et al. |
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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.
Fm. †Hypisodontidae
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G. †Hypisodus Cope 1873
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†Hypisodus alacer Troxell 1920
†Hypisodus ironsi Cook 1934
†Hypisodus minimus Cope 1873
†Hypisodus paululus Cook 1934
†Hypisodus retallacki Meehan and Martin 2004
†Hypisodus ringens Cope 1873
Diagnosis
Reference | Diagnosis | |
---|---|---|
I. A. Vislobokova 2001 | Small in size. Skull brachyceph- alic with long and slender rostrum. Orbits large. Postor- bital region anteriorly compressed. Postorbital bar com- plete, formed mostly by frontal. Auditory bullae large, strongly inflated, and meeting mid ventrally. External acoustic meatus medium long. Stylohyoid vagina encroaching upon bulla and enclosed posteriorly. Anterior opening of nasal cavity small. Upper canines large. Ante- rior premolars reduced; the first two of these lost. Radius and ulna fused. Fibula reduced and distally fused with tibia. Central metapodials III and IV closely appressed. |