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Ischyrocyon

Mammalia - Carnivora - Amphicyonidae

Synonyms
Synonymy list
YearName and author
1904Ischyrocyon Matthew and Gidley p. 246
1926Hadrocyon Stock and Furlong
1988Ischyrocyon Carroll
1998Ischyrocyon Hunt, Jr. p. 215
2019Ischyrocyon May

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
subclassSynapsida
Therapsida()
infraorderCynodontia()
Mammaliamorpha
RankNameAuthor
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Ferae()
CarnivoramorphaWyss and Flynn 1993
CarnivoraformesFlynn et al.
orderCarnivora
suborderCaniformiaKretzoi 1943
familyAmphicyonidaeHaeckel 1886
subfamilyAmphicyoninaeTrouessart 1885
genusIschyrocyon

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
ReferenceDiagnosis
W. D. Matthew and J. W. Gidley 1904Dentition /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.