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

Hypsiops rooneyi

Mammalia - 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 was synonymized subjectively with Hypsiops breviceps by Lander (1998); it was recombined as Hypsiops rooneyi by Stevens et al. (2023).

Synonymy list
YearName and author
1950Pseudomesoreodon rooneyi Schultz and Falkenbach p. 130 figs. 8-10, 13-15
2023Hypsiops rooneyi Stevens et al. p. 84 figs. Figure 66; Appendix 8B; Table A29

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

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
familyMerycoidodontidae
subfamilyMerycochoerinae
genusHypsiops
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.

†Hypsiops rooneyi Schultz and Falkenbach 1950
show all | hide all
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.
M. S. Stevens et al. 2023More derived species of Hypsiops, slightly larger in size than H. brachymelis, but smaller that Submerycochoerus bannackensis.