PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Protospermophilus oregonensis

Osteichthyes - Rodentia - Sciuridae

Taxonomy

Arctomyoides oregonensis was named by Downs (1956).

It was recombined as Protospermophilus oregonensis by Black (1963).

Entered

by J. Alroy on 2003-01-23

Synonymy list

Year	Name and author
1956	Arctomyoides oregonensis Downs
1963	Protospermophilus oregonensis Black p. 179 figs. Plate 13, figure 2 ; Plate 14, figure 1

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
class	Osteichthyes
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Euarchontoglires	Murphy et al. 2001
—	Gliriformes	Wyss and Meng 1996
—	Glires	()
—	Simplicidentata	()
order	Rodentia
superfamily	Sciuroidea
family	Sciuridae
tribe	Marmotini
genus	Protospermophilus	Gazin 1930
species	oregonensis	()

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.

†Protospermophilus oregonensis Downs 1956

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Diagnosis

Reference	Diagnosis
C. C. Black 1963	Largest species of genus; length of diastema in relation to alveolar length greater than in other protospermophiles; ectolophid moderately developed; mesoconid large; large anteroconid on m1-m2; anteroposterior compression of m1-m2 greater than in any other species of the genus.

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: Hendy et al. 2009, Lillegraven 1979, Nowak 1991, Ji et al. 2002, Carroll 1988

Age range: Miocene or 23.04000 to 5.33300 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Miocene	23.04 - 5.333	USA (Oregon)	Arctomyoides oregonensis (18967)