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Oreodontoides (Paroreodon) marshi

Mammalia - Artiodactyla - Merycoidodontidae

Taxonomy
Paroreodon marshi was named by Thorpe (1921) [genotype]. Its type specimen is YPM 12415, a partial skull (Partial skull with I2-P2 rt. and P3-M3 (M1-M3 br.) (Skull lacking postoccipital wings, zygomata, glenoid surface, and postglenoid process)), and it is a 3D body fossil. It is the type species of Paroreodon.

It was recombined as Oreodontoides (Paroreodon) marshi by Schultz and Falkenbach (1947); it was synonymized subjectively with Paroreodon parvus by Lander (1998).

Synonymy list
YearName and author
1921Paroreodon marshi Thorpe p. 108 figs. 14 - 16
1947Oreodontoides (Paroreodon) marshi Schultz and Falkenbach p. 256 figs. 1, 11, 12, 14-16

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
suborderTylopoda()
superfamilyOreodontoidea
familyMerycoidodontidaeThorpe 1923
subfamilyTicholeptinae
genusOreodontoides
subgenusParoreodon
speciesmarshi()

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
ReferenceDiagnosis
C. B. Schultz and C. H. Falkenbach 1947SKULL: Orbits appearing oblong, looking outward and slightly upward; malar robust; bulla with a noticeable external groove for the hyoid bone for the complete depth of the bulla; external auditory meatus opening mostly outward and slightly posteriorly; posterior palate extending beyond M3• MANDIBLE:See generic description. DENTITION: Brachyodont in comparison with Merychyus; more like Paramerychyus and Oreodontoides.
LIMBS: Light construction, approximating in length those of a large example of Merychyus arenarum.