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

Pseudomesoreodon rooneyi

Mammalia - Artiodactyla - Merycoidodontidae

Taxonomy
Pseudomesoreodon rooneyi was named by Schultz and Falkenbach (1950) [genotype]. Its type specimen is F:AM 44948A, a skull (Skull with I1-M3), 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 Pseudomesoreodon.

It was synonymized subjectively with Hypsiops breviceps by Lander (1998).

Synonymy list
YearName and author
1950Pseudomesoreodon rooneyi Schultz and Falkenbach p. 130 figs. 8-10, 13-15

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

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
genusPseudomesoreodon
speciesrooneyi

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: 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.