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Eporeodon

Mammalia - Merycoidodontidae

Synonyms
Synonymy list
YearName and author
1875Eporeodon Marsh
1890Eporeodon Scott
1902Eporeodon Hay p. 667
1913Eporeodon Scott p. 361
1921Eporeodon Thorpe
1937Eporeodon Thorpe p. 62
1940Eporeodon Scott p. 677 figs. Plat'e LXXII
1968Dayohyus Schultz and Falkenbach
1968Eporeodon Schultz and Falkenbach p. 198
1968Dayohyus Schultz and Falkenbach p. 215 figs. Figures 28, 29, 52 (skulls, mandibles, and dentition), 30 (limbs)
1996Eporeodon Stevens and Stevens p. 527
1998Eporeodon Lander
2007Eporeodon Stevens and Stevens p. 160
2023Eporeodon Stevens et al. pp. 15- 17

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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
RankNameAuthor
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes()
Trechnotheria
Cladotheria
Zatheria
subclassTribosphenida()
subclassTheria
Eutheria()
Placentalia
Boreoeutheria
Laurasiatheria
Scrotifera
Euungulata
Artiodactylamorpha
Artiodactyla()
familyMerycoidodontidae
subfamilyEporeodontinae
genusEporeodon

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. †Eporeodon Marsh 1875
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Subg. †Eporeodon (Oreodontoides) Thorpe 1921
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Subg. †Eporeodon (Paraeporeodon) Schultz and Falkenbach 1968
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Eporeodon occidentalis Marsh 1873
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Invalid names: Dayohyus wortmani Schultz and Falkenbach 1968 [synonym], Eporeodon condoni Thorpe 1921 [synonym], Eporeodon davisi Schultz and Falkenbach 1968 [synonym], Eporeodon leptacanthus Cope 1884 [synonym], Eporeodon longifrons Cope 1884 [synonym], Eporeodon thurstoni Stock 1934 [synonym], Eucrotaphus trigonocephalus Cope 1884 [synonym]
Eporeodon pacificus Cope 1884
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Invalid names: Eporeodon leptacanthus leptacanthus Cope 1884 [synonym], Eporeodon perbullatus Thorpe 1921 [synonym], Eucrotaphus jacksoni leptacanthus Cope 1884 [synonym], Eucrotaphus major longifrons Cope 1884 [synonym], Hypsiops johndayensis Schultz and Falkenbach 1950 [synonym], Pseudogenetochoerus covensis Schultz and Falkenbach 1968 [synonym]
Invalid names: Dayohyus Schultz and Falkenbach 1968 [synonym]
Diagnosis
ReferenceDiagnosis
M. S. Stevens et al. 2023Medium-sized oreodonts (basal length from171-207 mm; width of skull from 125-160 mm) with inflatedauditory bullae, small facial vacuities, tendency toward afan-shaped occiput, arched dorsal profile of the frontals andnasals, and mesodont teeth. Compared to Merycoidodon majorand other merycoidodontines with enlarged auditory bullae, Eporeodon has a much narrower and more concave nasal profile,more inclined premaxillae, and has a much larger and deeperpreorbital fossa.