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Promerycochoerus (Pseudopromerycochoerus) montanus

Mammalia - Artiodactyla - Merycoidodontidae

Taxonomy
Merycochoerus montanus was named by Cope (1884). Its type specimen is AMNH 8107, a partial skull (Posterior portion of skull with M1-M3 and partial mandible with p4-m3), and it is a 3D body fossil. It is the type species of Promerycochoerus (Pseudopromerycochoerus).

It was recombined as Promerycochoerus montanus by Douglass (1901), Thorpe (1921), Thorpe (1924), Thorpe (1937) and Koerner (1940); it was recombined as Promerycochoerus (Pseudopromerycochoerus) montanus by Schultz and Falkenbach (1949); it was synonymized subjectively with Merycochoerus superbus by Lander (1998).

Synonymy list
YearName and author
1884Merycochoerus montanus Cope p. 531
1901Promerycochoerus montanus Douglass
1921Promerycochoerus montanus Thorpe
1924Promerycochoerus montanus Thorpe
1937Promerycochoerus montanus Thorpe
1940Promerycochoerus montanus Koerner
1949Promerycochoerus (Pseudopromerycochoerus) montanus Schultz and Falkenbach p. 126 figs. 8-12, 25, 26

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
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
subfamilyPromerycochoerinae
genusPromerycochoerus
subgenusPseudopromerycochoerus
speciesmontanus()

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 1949SKULL: Supraoccipital wings slightly larger than in examples of P. (P.) montanus pinensis; posterior portion of sagittal crest more robust than in the subspecies; exoccipital pits deep; nasals with slight anterior retraction; anterior nasal-maxilla contact above region just anterior of P 1 ; infraorbital foramen above the posterior portion of P4 to the anterior portion of M1 ; bulla oblong in outline.
MANDIBLE: Typical of subgeneric description.
DENTITION: Typical of subgeneric description.
LIMBS: Short and heavy; shorter and lighter than in examples of P. latidens.