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Synaptomys

Osteichthyes - Rodentia - Cricetidae

Taxonomy
Synaptomys was named by Baird (1858). It is not extant.

It was assigned to Microtinae by Kurten and Anderson (1980); to Cricetidae by Baird (1858), McKenna and Bell (1997); and to Arvicolinae by Seymour (2004), Eshelman et al. (2025).

Synonymy list
YearName and author
1858Synaptomys Baird
1980Synaptomys Kurten and Anderson p. 268
1997Synaptomys McKenna and Bell
2004Synaptomys Seymour
2025Synaptomys Eshelman et al. p. 109

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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()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentiaBowdich 1821
familyCricetidaeFischer von Waldheim 1817
genusSynaptomysBaird 1858

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. †Synaptomys Baird 1858
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†Synaptomys australis Simpson 1928
†Synaptomys bunkeri Hibbard 1939
Synaptomys cooperi Baird 1858 [southern bog lemming]
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Invalid names: Arvicola gossii Coues 1877 [synonym], Synaptomys fatuus Bangs 1896 [synonym], Synaptomys helaletes Merriam 1896 [synonym], Synaptomys stonei Rhoads 1893 [synonym]
†Synaptomys morgani Martin et al. 2003
Diagnosis
No diagnoses are available
Measurements
partNmean

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: Carroll 1988, Hendy et al. 2009, Nowak 1999, Lillegraven 1979, Ji et al. 2002

Age range

Maximum range based only on fossils: base of the Pleistocene to the top of the Rancholabrean or 2.58000 to 0.01400 Ma
Minimum age of oldest fossil (stem group age): 2.245 Ma

Collections (71 total)


Time interval Ma Country or state Original ID and collection number
Blancan4.7 - 1.4USA (Wyoming) S. sp. (20065)
MN 163.55 - 2.245Poland S. europaeus (33473 33638)
Pleistocene2.58 - 0.0117USA (Georgia) S. cooperi (238514)
Pleistocene2.58 - 0.0117USA (West Virginia) S. cooperi (124319) S. sp., S. cooperi (123875)
Irvingtonian1.4 - 0.21USA (Virginia) S. sp., S. cooperi (20388)
Irvingtonian1.4 - 0.21USA (Florida) S. sp. (20350 20402)
Irvingtonian1.4 - 0.21USA (West Virginia) S. cooperi (20286 20554 20555)
Irvingtonian1.4 - 0.21USA (Maryland) S. sp., S. cooperi (20302)
Irvingtonian1.4 - 0.21USA (Pennsylvania) S. cooperi (20354)
Irvingtonian1.4 - 0.21USA (Texas) S. australis (20318) S. sp. (20337)
Irvingtonian1.4 - 0.21USA (Nebraska) S. sp. (20143)
Irvingtonian1.4 - 0.21USA (Kansas) S. australis (20422 20423 20424)
Rancholabrean0.21 - 0.014USA (Florida) S. australis (20491)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Kansas) S. australis (20605)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Florida) S. australis (20571 20572 20573 20580 20595 20634 20653)
Late/Upper Pleistocene0.129 - 0.0117USA (West Virginia) S. cooperi (93332 123868 124198 124199)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Oklahoma) S. bunkeri (91527)
Late/Upper Pleistocene (late glacial)0.129 - 0.0117USA (Missouri) S. cooperi (93676)
Late/Upper Pleistocene (glacial)0.129 - 0.0117USA (Florida) S. australis (20608 154771 154921)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Indiana) S. cooperi (20600)
Late/Upper Pleistocene0.129 - 0.0117USA (Georgia) S. cooperi (13066)
Late/Upper Pleistocene0.129 - 0.0117USA (Virginia) S. cooperi (103991 104666 104679 104681 104685 104697 104758 124089) S. corealis, S. cooperi (82258) S. sp. (104676)
Late/Upper Pleistocene (late glacial)0.129 - 0.0117USA (Georgia) S. australis (75066)
Late/Upper Pleistocene0.129 - 0.0117Mexico (Nuevo Leon) S. cooperi (71345)
Late/Upper Pleistocene0.129 - 0.0117USA (Florida) S. australis (20638 74292 154805)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Georgia) S. australis (20604)
Late/Upper Pleistocene (late glacial)0.129 - 0.0117USA (Texas) S. cooperi (93143)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Texas) S. sp. (20586)
Late/Upper Pleistocene - Holocene0.129 - 0.0USA (Missouri) S. cooperi (63564 63565 63566 63567 63568 63569 63570 63571)
Late/Upper Pleistocene - Holocene0.129 - 0.0USA (Virginia) S. cooperi (104034 104044 104672 104689) S. sp. (104670)