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Ischyrocyon
Taxonomy
Ischyrocyon was named by Matthew and Gidley (1904). Its type is Ischyrocyon hyaenodus.
It was assigned to Canidae by Matthew and Gidley (1904); to Amphicyonidae by Carroll (1988); and to Amphicyoninae by Hunt (1998) and May (2019).
It was assigned to Canidae by Matthew and Gidley (1904); to Amphicyonidae by Carroll (1988); and to Amphicyoninae by Hunt (1998) and May (2019).
Synonyms
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Synonymy list
Year | Name and author |
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1904 | Ischyrocyon Matthew and Gidley p. 246 |
1926 | Hadrocyon Stock and Furlong |
1988 | Ischyrocyon Carroll |
1998 | Ischyrocyon Hunt, Jr. p. 215 |
2019 | Ischyrocyon May |
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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.
G. †Ischyrocyon Matthew and Gidley 1904
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†Ischyrocyon gidleyi Matthew 1902
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Invalid names: Hadrocyon mohavensis Stock and Furlong 1926 [synonym], Ischyrocyon hyaenodus Matthew and Gidley 1904 [synonym], Pliocyon walkerae Johnston and Christian 1941 [synonym]
Invalid names: Hadrocyon Stock and Furlong 1926 [synonym]
Diagnosis
Reference | Diagnosis | |
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W. D. Matthew and J. W. Gidley 1904 | Dentition /3, /1, /4, /3. Molars without metaconid or entoconid. Premolars reduced, massive, crowded, without heel-cusps except on p4, and with no accessory posterior cusps. The dental formula and relative sizes of premolars and molars are as in Amphicyon, but the cusp composition of the molars is that of Cyon. All the teeth are very massive. The lateral incisor is exceptionally large. First premolar two-rooted. |