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Submerycochoerus bannackensis

Mammalia - Artiodactyla - Merycoidodontidae

Taxonomy
Ticholeptus bannackensis was named by Douglass (1907). Its type specimen is CM 995, a partial skeleton (a portion of the anterior upper part of the skull, a mandible, and the greater portion of a skeleton), and it is a 3D body fossil. Its type locality is Grasshopper Creek, which is in a Harrisonian terrestrial horizon in Montana. It is the type species of Submerycochoerus.

It was recombined as Hypsiops bannackensis by Lander (1998) and Tabrum and Nichols (2001); it was recombined as Submerycochoerus bannackensis by Schultz and Falkenbach (1950) and Stevens and Stevens (2007).

Synonyms
Synonymy list
YearName and author
1907Ticholeptus bannackensis Douglass p. 108
1950Pseudomesoreodon boulderensis Schultz and Falkenbach
1950Submerycochoerus bannackensis Schultz and Falkenbach p. 127 figs. 8-10, 12, 13
1950Pseudomesoreodon boulderensis Schultz and Falkenbach p. 132 figs. 8, 10, 12
1998Hypsiops bannackensis Lander
2001Hypsiops bannackensis Tabrum and Nichols
2007Submerycochoerus bannackensis Stevens and Stevens p. 160

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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
subfamilyPhenacocoelinae
genusSubmerycochoerus
speciesbannackensis()

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 1950SKULL: Size large (approaching size of Merycochoerus matthewi); nasals greatly retracted to anterior portion of P2; anterior nasal-maxilla con tact above P3 ; zygomatic arch extending posteriorly to a point above the posterior border of the postglenoid process; large and deep lacrimal fossa; small facial vacuity. (See generic description.)
MANDIBLE: Similar to examples of Hypsiops. (See generic description.)
DENTITION: Series longer than any known examples of Hypsiops; smaller than in examples of Merycochoerus. (See generic description.)
LIMBS: Robust, somewhat longer and heavier than examples of H. brachymelis; lighter and shorter than examples of Promerycochoerus or Merycochoerus.