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Priusaulax

Mammalia - Rodentia - Castoridae

Discussion

This genus was originally entered into the Paleobiology Database as "Priusalax."

Taxonomy
Priusaulax was named by Korth and Bailey (2006) [used as a nomen nudum by Rybczynski 2007]. Its type is Priusalax browni.

It was assigned to Castoroidini by Korth and Bailey (2006); and to Hystricopini by Korth (2017).

Synonymy list
YearName and author
2006Priusaulax Korth and Bailey p. 237
2017Priusaulax Korth p. 251

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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
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
infraorderCastorimorpha
superfamilyCastoroideaGray 1821
familyCastoridae
subfamilyCastoroidinaeAllen 1877
tribeHystricopini
genusPriusaulax

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.

G. †Priusaulax Korth and Bailey 2006
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†Priusaulax browni Korth and Bailey 2006
†Priusaulax senrudi Wood 1945
†Priusaulax wilsoni Korth 2017
Diagnosis
ReferenceDiagnosis
W. W. Korth and B. E. Bailey 2006Larger in size than contemporaneous agnotocastorines and palaeocastorines. Derived castoroidine cranial features—divergent tooth rows; grooved palate; premolar larger than molars; stapedial foramen lost in bulla; posterior palatine foramen within palatine-max- illary suture. Primitive agnotocastorine features—contact of jugal bone with lachrymal; more elongated rostrum; incisors more procum- bent; cheek teeth mesodont and rooted; mesostriid only lingual striid on P4; parafossettid on P4 maintains anterior opening until moderate wear; cheek teeth maintain primitive pattern of three fossettes (-ids), no indication of S-pattern of more advanced genera.
W. W. Korth 2017Hystricopine; markedly smaller and less robust than species of Hystricops; anterior enamel surface on i1 gently convex, cross-section longer than wide; cheek teeth slightly lower-crowned.