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Leptodontomys

Mammalia - Rodentia - Eomyidae

Taxonomy
Leptodontomys was named by Shotwell (1956). It is not extant. Its type is Leptodontomys oregonensis.

It was assigned to Eomyidae by Shotwell (1956) and McKenna and Bell (1997).

Species
L. douglassi, L. oregonensis (type species), L. quartzi, L. russelli, L. stirtoni
Species lacking formal opinion data
L. catalaunicus

Synonyms
Synonymy list
YearName and author
1956Leptodontomys Shotwell
1972Pseudadjidaumo Lindsay
1997Leptodontomys McKenna and Bell
1997Pseudadjidaumo McKenna and Bell

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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
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
infraorderCastorimorpha
superfamilyGeomyoideaBonaparte 1845
familyEomyidaeWinge 1887
genusLeptodontomys

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.

G. †Leptodontomys Shotwell 1956
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†Leptodontomys oregonensis Hibbard 1970
†Leptodontomys quartzi Shotwell 1967
†Leptodontomys russelli Storer 1970
†Leptodontomys stirtoni Lindsay 1972
Invalid names: Pseudadjidaumo Lindsay 1972 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: viviparoussubc
Created: 2005-08-26 14:04:46
Modified: 2005-08-26 16:04:46
Source: o = order, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Hendy et al. 2009, Carroll 1988, Nowak 1999, Ji et al. 2002

Age range: base of the Arikareean to the top of the MN 14 or 29.50000 to 4.20000 Ma

Collections (34 total)


Time interval Ma Country or state Original ID and collection number
Geringian30.8 - 26.3USA (Nebraska) L. sp. (17709)
Arikareean29.5 - 18.5USA (North Dakota) Adjidaumo douglassi (17724)
Arikareean29.5 - 18.5USA (Oregon) L. n. sp., L. douglassi (212628)
Monroecreekian26.3 - 24.8Canada (Saskatchewan) L. sp. (17526)
Miocene23.03 - 5.333Canada (Alberta) Pseudadjidaumo russelli (18781)
Miocene23.03 - 5.333USA (California) Pseudadjidaumo stirtoni (19578)
Hemingfordian20.43 - 15.97Canada (Saskatchewan) L. sp. (18003)
Hemingfordian20.43 - 15.97USA (California) Eomys zitteli (19599)
Barstovian16.3 - 12.5USA (California) Pseudadjidaumo stirtoni (19304 19343 19550)
Barstovian16.3 - 12.5Canada (Saskatchewan) Pseudadjidaumo russelli (18759)
Barstovian16.3 - 12.5USA (Nebraska) L. sp. (18284)
Barstovian16.3 - 12.5USA (Oregon) Adjidaumo quartzi (19011)
Early/Lower Barstovian16.3 - 12.5USA (Nebraska) L. stirtoni (17976)
early Late Barstovian16.3 - 12.5USA (Montana) Pseudadjidaumo sp. (18848)
Middle Miocene - Late/Upper Miocene15.97 - 5.333China (Nei Mongol) L. sp. (13483)
MN 7 + 812.75 - 11.1Switzerland (Baselland) L. catalaunicus (49421)
Clarendonian12.5 - 9.4USA (Oklahoma) L. sp. (18463)
Clarendonian12.5 - 9.4USA (Oregon) L. sp. (18831)
Clarendonian12.5 - 9.4USA (Nebraska) L. sp. (18452)
Tortonian11.62 - 7.246Germany (Bavaria) L. catalaunicus (34256)
Tortonian11.62 - 7.246China (Yunnan) L. sp. (11798)
Late/Upper Miocene11.608 - 5.333Greece (Kozani) L. catalaunicus (205341)
Hemphillian10.3 - 4.9USA (Oregon) L. oregonensis (18970) L. sp. (18807)
MN 118.7 - 7.75Austria (Burgenland) L. sp. (37789)
Turolian8.7 - 5.333China (Yunnan) L. sp. (44219 44220 44224)
Turolian8.7 - 5.333Greece (Central Macedonia) L. catalaunicus (32189)
Turolian8.7 - 5.333China (Gansu) L. gansus (42674)
MN 144.9 - 4.2Poland L. catalaunicus (32240)
MN 14 - MN 154.9 - 3.2Poland L. sp. (33873)