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Campestrallomys dawsonae

Mammalia - Rodentia - Aplodontidae

Taxonomy
Prosciurus dawsonae was named by Macdonald (1963). Its type specimen is SDSM 56112, a mandible (left ramus, with unworn p4-m3.), and it is a 3D body fossil. Its type locality is Sharps (SDSM V-541), which is in a Geringian terrestrial horizon in the Sharps Formation of South Dakota.

It was recombined as Haplomys dawsonae by Wang (1987); it was recombined as Campestrallomys dawsonae by Korth (1989) and Korth (2014).

Synonymy list
YearName and author
1963Prosciurus dawsonae Macdonald p. 175 fig. 9
1987Haplomys dawsonae Wang
1989Campestrallomys dawsonae Korth
2014Campestrallomys dawsonae Korth p. 377

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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
RankNameAuthor
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
familyAplodontidaeBrandt 1855
subfamilyProsciurinae
genusCampestrallomys
speciesdawsonae()

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.

†Campestrallomys dawsonae Macdonald 1963
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Diagnosis
ReferenceDiagnosis
J. R. Macdonald 1963Hypolophid greatly reduced on al cheek teeth, connected to hypoconulid; posterior arm of protoconid (metalophid II) greatly reduced.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: fossorialf
Diet: herbivoref
Reproduction: viviparoussubc
Created: 2005-06-08 10:11:09
Modified: 2005-08-26 12:56:39
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Nowak 1991, Lillegraven 1979, Hendy et al. 2009, Ji et al. 2002, Carroll 1988

Age range: base of the Whitneyan to the top of the Monroecreekian or 33.30000 to 24.80000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Whitneyan33.3 - 30.8USA (South Dakota) Campestrallomys dawsonae (170168)
Geringian30.8 - 26.3USA (Nebraska) Campestrallomys dawsonae (17709) Prosciurus dawsonae (17495)
Geringian30.8 - 26.3USA (South Dakota) Prosciurus dawsonae (17630 17636 17638 type locality: 17641 17654 17655)
Monroecreekian26.3 - 24.8Canada (Saskatchewan) Campestrallomys dawsonae (17526)