|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Mammalia - Ungulata - Merycoidodontidae
It was synonymized subjectively with Hypsiops breviceps by Lander (1998).
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.
|C. B. Schultz and C. H. Falkenbach 1950||SKULL: Smallest of the genus; approximately same height as holotype of P. rolli, lower and wider than type of ?P. boulderensis; mesocephalic; sagittal crest comparatively short anteroposteriorly but prominent; brain case slightly elongated; anterior nasal-maxilla contact above P 3 ; malar moderately deep below orbit, approximately equal to depth in P. rolli, decidedly less than in'?P. boulderensis; paroccipital process more slender than in P. rolli or ?P. boulderensis.
MANDIBLE: (Known from fragment of ramus only).
DENTITION: Smallest genus; superior incisors graduating in size with I3 approximately twice the size of I2; PLP 3 each set at slight angle to alveolar border; C/ with anterior internal vertical groove. (Inferior dentition known from worn PrPa only.)
LIMBS: Moderately robust, similar in length to examples of Hypsiops brachymelis.