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Monosaulax pansus

Mammalia - Rodentia - Castoridae

Taxonomy
Steneofiber pansus was named by Cope (1874).

It was recombined as Castor pansus by Cope (1881); it was synonymized subjectively with Eucastor tortus by Stout in Skinner and Taylor (1967) and Tedford and Barghoorn (1993); it was recombined as Eucastor pansus by Voorhies (1990); it was recombined as Monosaulax pansus by Stirton (1935), Storer (1975), Evander (1999), Korth (1999) and Korth (2008).

Sister species lacking formal opinion data
M. changpeiensis, M. eseri

Synonymy list
YearName and author
1874Steneofiber pansus Cope
1881Castor pansus Cope p. 370
1902Steneofiber pansus Hay p. 722
1904Steneofiber pansus Matthew and Gidley p. 250 figs. 9 and 10
1905Steneofiber pansus Peterson p. 173
1935Monosaulax pansus Stirton
1975Monosaulax pansus Storer
1990Eucastor pansus Voorhies
1999Monosaulax pansus Evander
1999Monosaulax pansus Korth
2008Monosaulax pansus Korth p. 171

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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
—Mammaliaformes
classMammalia
RankNameAuthor
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—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
tribeCastoroidiniAllen 1877
genusMonosaulax
speciespansus(Cope 1874)

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.

†Monosaulax pansus Cope 1874
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: amphibiousf
Diet: browserf
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:05:29
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Nowak 1991, Hendy et al. 2009, Lillegraven 1979, Ji et al. 2002

Age range: base of the Barstovian to the top of the Clarendonian or 16.30000 to 9.40000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Barstovian16.3 - 12.5USA (California) Monosaulax pansus (19193 19550)
Barstovian16.3 - 12.5USA (Nebraska) Eucastor pansus (18102 18208) Monosaulax pansus (18275)
Early/Lower Barstovian16.3 - 12.5USA (Montana) Monosaulax pansus (18803)
Clarendonian12.5 - 9.4USA (Nebraska) Monosaulax pansus (18299)