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Taxonomy
Allocyon was named by Merriam (1930). It is not extant. Its type is Allocyon loganensis.
It was assigned to Canidae by Merriam (1930); to Ursidae by Carroll (1988); to Amphicynodontinae by Hunt (1998); to Phocoidea by McKenna and Bell (1997) and Wang et al. (2005); and to Arctoidea by Paterson et al. (2020).
It was assigned to Canidae by Merriam (1930); to Ursidae by Carroll (1988); to Amphicynodontinae by Hunt (1998); to Phocoidea by McKenna and Bell (1997) and Wang et al. (2005); and to Arctoidea by Paterson et al. (2020).
Species
A. loganensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Allocyon Merriam p. 230 figs. 1 - 5 |
| 1988 | Allocyon Carroll |
| 1997 | Allocyon McKenna and Bell p. 252 |
| 1998 | Allocyon Hunt, Jr. p. 179 |
| 2005 | Allocyon Wang et al. p. 48 fig. 17 |
| 2020 | Allocyon Paterson 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Merriam 1930 | Cranium of a more massive construction than is com- monly observed among Canidae. Rostrum short, broad and shallow. Basi- cranial region broad. Co-ossified paroccipital and mastoid portion of the periotic bone particularly heavy. Bulla smooth, inflated, simple and protected along the median side by a laminate extension of the basioccipital. Bony auditory meatus well developed. Antero-posterior diameter of P! but slightly greater than that of M!. P! broadly triangular in outline at base of crown, exhibiting an approach to the hemieyonine posterior migration of the protocone. This carnassial has a relatively short metastyle and shows an incipient development suggesting a hypocone. Heel of M! expanded, with apparent posterior rotation. Mandible short and uncommonly heavy. |