|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Artiodactyla - Tayassuidae
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).
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|W. D. Matthew and J. W. Gidley 1904||Premolars 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.