Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Macrogenis crassigenis

Mammalia - Artiodactyla - Tayassuidae

Taxonomy
Prosthennops crassigenis was named by Matthew and Gidley (1904) [said to be the genotype by Colbert 1935, but this is actually P. serus according to Skinner et al. 1977, Wright 1998]. Its type specimen is AMNH 10882, a skull, and it is a 3D body fossil.

It was recombined as Macrogenis crassigenis by Wright (1983), Wright (1993) and Wright (1998); it was misspelled as Macrogenis crassigensis by Dutra et al. (2017).

Synonymy list
YearName and author
1904Prosthennops crassigenis Matthew and Gidley p. 265 figs. 14 and 15
1983Macrogenis crassigenis Wright
1993Macrogenis crassigenis Wright
1998Macrogenis crassigenis Wright
2017Macrogenis crassigensis Dutra et al. p. 355

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
orderArtiodactyla()
superfamilySuoidea
familyTayassuidae
subfamilyTayassuinaePalmer 1897
tribePlatygonini
genusMacrogenis
speciescrassigenis()

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
W. D. Matthew and J. W. Gidley 1904Premolars much smaller than the molars; p 2 triangular, three-rooted; p 3 and p 4 four-rooted, but not completely
. molariform as indicated by the close approximation of the two inner fangs; the palatines· extend well backward, throwing the posterior nares somewhat behind the glenoid fossre; the bullre are large and occupy a more posterior position than in any species of Tagassu; the ridge on the outer surface of the maxilla is not produced forward as in the modern peccaries, but is short and bifurcated anteriorly by a deep pit. Anterior to this pit is another larger pit in which the infraorbital foramen opens; still another shallower pit of smaller size occupies a position anterior to and somewhat above the large pit. There are also two long, narrow pits or grooves on the upper face of the skull, extending the entire length of the nasals. The sagittal crest is broad. and flat on top. Some of the above specific characters may be of generic value.