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Desmatochoerus (Paradesmatochoerus)

Mammalia - Ungulata - Merycoidodontidae

Synonymy list
YearName and author
1954Desmatochoerus (Paradesmatochoerus) Schultz and Falkenbach p. 193 figs. 8-11, 18, 24-25

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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
subclassTribosphenida()
infraclassEutheria()
orderUngulata(Linnaeus 1766)
orderArtiodactyla()
familyMerycoidodontidae
subfamilyPromerycochoerinae
genusDesmatochoerus()
subgenusParadesmatochoerus

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 1954SKULL: Medium size, basal length ranging from 215 to 236 mm., width from 105 to 174 mm.; smaller than in species of Desmatochoerus; dolichocephalic to submesocephalic; sagittal crest high, but not so high as in Desmatochoerus, considerably higher than in Pseudodesmatochoerus; supraoccipital wings small and not widely spread, protruding posteriorly for short distance (less than in Desmatochoerus); large exoccipital vacuities present; brain case long and narrow; frontals narrow, with oblong protuberance usually present along midline above orbits; nasals long and narrow; anterior nasal-maxilla contact above P 1 ; orbit moderately large, looking mostly outward and forward, oval vertically, with long axis sloping upward anteroposteriorly; squamosal light to moderately heavy (lighter in the supposed female examples); zygomatic arch with prominent inward curve just posterior to orbit; malar moderately deep below orbit; lacrimal fossa small but deep; infraorbital foramen above posterior portion of P 3 to anterior portion of P4; facial vacuity usually present; shallow depression above premolar region; premaxillae joined for short distance; occipital condyles lighter than in Desmatochoerus; paraoccipital process wide at base but more peg-shaped and with less lateral compression than in Desmatochoerus; postglenoid process robust, almost round in cross section; bulla laterally compressed (similar to examples of Desmatochoerus); posterior palate produced posteriorly beyond Ms. MANDIBLE:Moderately light; smaller than in Desmatochoerus; postsymphysis below Pa; ramus shallow, increasing in depth posteriorly; inferior border of ramus with slight downward trend to a point below posterior lobe of M3, and an abrupt downward curve posterior to M 3 ; ascending ramus moderately high; condyle light, set at less than right angle to longitudinal axis of dentition and with external border farther forward and higher than internal border.
DENTITION: More brachyodont than in Desmatochoerus; series of less length and lighter than in examples of Desmatochoerus; /C approximately three times as large as Ia; premolars not crowded, but p1-ps and PrPa each set at slight angle to alveolar border; external styles on superior molars moderately prominent; p1-p 3 each with anterior intermediate crest; P 3 with posterior intermediate crest.