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Amphicyon intermedius

Mammalia - Carnivora - Amphicyonidae

Taxonomy
Amphicyon intermedius was named by White (1940) [preoccupied by a European species; Type locality is Thomas Farm]. Its type specimen is MCZ 3631, a mandible (left mandible with p3 - m2 and alveoli for c1, p1 and 2 and m3), and it is a 3D body fossil.

It was synonymized subjectively with Amphicyon longiramus by Olsen (1960) and Hulbert (1992).

Sister species lacking formal opinion data
A. confucianus, A. cooperi, A. crassidens, A. steinheimensis

Synonymy list
YearName and author
1940Amphicyon intermedius White p. 32 figs. Pl. 1 and 2

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
RankNameAuthor
—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
tribeAmphicyoniniTrouessart 1885
genusAmphicyonLartet 1836
speciesintermedius

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.

†Amphicyon intermedius White 1940
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Diagnosis
ReferenceDiagnosis
T. E. White 1940Intermediate in size between A. frendens Matthew and A. superbus Peterson; diastema between p2 and p3 the longest yet recorded (18 mm.), proportions of m1 and 2 essentially the same as in the other species; cusps of the molars resembling those of A. sinapius Matthew, but distinguished from that species by the smaller size and the greater length of the diastema between p2 and 3. It differs from A. pontoni Simpson in that m2 is longer for its width, and that the basin between the hypocone and entocone is shallower.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: carnivoref
Reproduction: viviparoussubc
Created: 2005-08-30 14:52:56
Modified: 2005-08-30 16:52:56
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hunt 1998, Ji et al. 2002, Hendy et al. 2009, Lillegraven 1979
Collections
No collection or age range data are available