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Protosciurus tecuyensis

Osteichthyes - Rodentia - Sciuridae

Taxonomy
Sciurus tecuyensis was named by Bryant (1945). Its type specimen is UCMP 23611, a mandible (part of a right mandibular ramus extending from the level of the anterior margin of p4 to the basal part of the vertical ramus; m1 and m2 well preserved), and it is a 3D body fossil. Its type locality is Tecuya Canyon, which is in an Arikareean terrestrial horizon in the Tecuya Formation of California.

It was recombined as Protosciurus tecuyensis by Black (1963).

Synonymy list
YearName and author
1945Sciurus tecuyensis Bryant p. 341 figs. Pl. 8, fig. c
1960Sciurus tecuyensis Stirton p. 361
1963Protosciurus tecuyensis Black

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
RankNameAuthor
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
superfamilySciuroidea
familySciuridae
genusProtosciurus
speciestecuyensis()

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.

†Protosciurus tecuyensis Bryant 1945
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Diagnosis
ReferenceDiagnosis
M. D. Bryant 1945 Mandibular ramus massive; crests of masseteric fossa prominent and masseteric fossa deep; masseteric fossa acutely pointed anteriorly and ends below protoconid of m1. Teeth brachydont; large protoconulids present on m1 and m2
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: Nowak 1991, Ji et al. 2002, Carroll 1988, Hendy et al. 2009, Lillegraven 1979

Age range: Arikareean or 29.50000 to 18.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Arikareean29.5 - 18.5USA (California) Sciuridae indet. (type locality: 17701)