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Palaearctomys macrorhinus

Mammalia - Rodentia - Sciuridae

Taxonomy
Palaearctomys macrorhinus was named by Douglass (1903). Its type specimen is CM 733, a partial skull (A skull without the left zygomatic arch and the occipital region; upper incisor, right P4, left M1, M2 and M3 present), and it is a 3D body fossil.

It was synonymized subjectively with Palaearctomys montanus by Black (1963) and Tabrum and Nichols (2001).

Synonymy list
YearName and author
1903Palaearctomys macrorhinus Douglass
1945Palaearctomys macrorhinus Bryant p. 359 figs. Pl. 8, figs. a, b

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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
EuarchontogliresMurphy et al. 2001
GliriformesWyss and Meng 1996
Glires()
Simplicidentata()
orderRodentiaBowdich 1821
superfamilySciuroidea
familySciuridae
genusPalaearctomys
speciesmacrorhinus

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.

Palaearctomys macrorhinus Douglass 1903
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Diagnosis
ReferenceDiagnosis
M. D. Bryant 1945Skull robust; smaller and relatively stouter than that of P. montanus and Marmota monax. Rostrum particularly massive; zygomatic arches markedly convex laterally; longitudinal ridges on upper incisor fine; upper incisor short and heavy; upper diastema long; cheek teeth small.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialf
Diet: granivoref
Diet 2: frugivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 13:04:24
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Nowak 1991, Lillegraven 1979, Ji et al. 2002, Hendy et al. 2009
Collections
No collection or age range data are available