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Gomphotherium obscurum

Mammalia - Proboscidea - Mammutidae

Taxonomy
Mastodon obscurum was named by Leidy (1869).

It was recombined as Mammut obscurum by Hay (1902); it was recombined as Serridentinus obscurus by Osborn (1923); it was considered a nomen dubium by Tobien (1973); it was recombined as Gomphotherium obscurum by Madden and Storer (1985).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1869Mastodon obscurum Leidy
1873Mastodon obscurus Leidy p. 231
1875Mastodon obscurum Cope p. 51
1902Mammut obscurum Hay p. 711
1921Trilophodon giganteus Osborn
1923Serridentinus obscurus Osborn
1923Serridentinus progressus Osborn
1923Trilophodon simplicidens Osborn
1925Gomphotherium cimarronis Hay
1928Serridentinus fricki Peterson
1933Trilophodon riograndensis Frick
1933Trilophodon fricki Osborn
1939Trilophodon simpsoni Stirton
1950Gomphotherium calvertensis Gazin and Collins p. 7
1951Gomphotherium cingulatum Downs
1952Gomphotherium fricki Downs
1955Gomphotherium simpsoni Savage
1972Gomphotherium giganteum Tobien
1972Gomphotherium riograndense Tobien
1972Gomphotherium simpsoni Tobien
1985Gomphotherium obscurum Madden and Storer

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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
AfrotheriaStanhope et al. 1998
Tethytheria
orderProboscidea()
suborderElephantiformesTassy 1988
ElephantimorphaTassy and Shoshani 1997
MammutidaTassy and Shoshani 1997
familyMammutidaeHay 1922
genusGomphotheriumBlumenbach 1799
speciesobscurum(Leidy 1869)

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.

Gomphotherium obscurum Leidy 1869
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Invalid names: Gomphotherium calvertensis Gazin and Collins 1950 [synonym], Gomphotherium cimarronis Hay 1925 [synonym], Gomphotherium cingulatum Downs 1951 [synonym], Serridentinus fricki Peterson 1928 [synonym], Serridentinus progressus Osborn 1923 [synonym], Trilophodon giganteus Osborn 1921 [synonym], Trilophodon riograndensis Frick 1933 [synonym], Trilophodon simplicidens Osborn 1923 [synonym], Trilophodon simpsoni Stirton 1939 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingg
Diet: browserg
Reproduction: viviparoussubc
Created: 2005-08-31 15:16:05
Modified: 2009-01-04 12:24:42
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Ji et al. 2002, Hendy et al. 2009, Carroll 1988, Lambert and Shoshani 1998, Lillegraven 1979

Age range: base of the Langhian to the top of the Tortonian or 15.97000 to 7.24600 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Miocene23.03 - 5.333USA (Nevada) Gomphotherium simpsoni (19102)
Miocene23.03 - 5.333USA (Colorado) Serridentinus fricki (18874)
Miocene23.03 - 5.333USA (California) Gomphotherium productum (19608)
Miocene23.03 - 5.333USA (Texas) Gomphotherium productus (18375)
Burdigalian - Langhian20.44 - 13.82USA (Maryland) Gomphotherium calvertensis (18518)
Langhian15.97 - 13.82USA (Maryland) Gomphotherium calvertensis (45502)
Barstovian15.97 - 13.6USA (Texas) Gomphotherium productum (18618) Gomphotherium productus (35591) Mastodontidae indet. (18619)
Barstovian15.97 - 13.6USA (Maryland) Gomphotherium calvertensis (18519)
Barstovian15.97 - 13.6USA (New Mexico) Gomphotherium productum (19287)
Barstovian - Early/Lower Clarendonian15.97 - 10.3USA (New Mexico) Gomphotherium productum (19286)
Middle Miocene - Late/Upper Miocene15.97 - 5.333USA (Oregon) Gomphotherium cingulatum (19115)
Serravallian13.82 - 11.62USA (Virginia) Gomphotherium calvertensis (126605)
Clarendonian13.6 - 10.3USA (South Dakota) Trilophodon giganteus (18426)
Clarendonian13.6 - 10.3USA (Texas) Gomphotherium productus (18074)
Clarendonian13.6 - 10.3USA (Nevada) Gomphotherium productum (19035)
Clarendonian13.6 - 10.3USA (California) Gomphotherium simpsoni (19185) Trilophodon simplicidens (19145) Trilophodon simpsoni (19418)
Clarendonian - Hemphillian13.6 - 4.9USA (Texas) Gomphotherium productum (18703)
Tortonian11.62 - 7.246USA (Florida) Gomphotherium calvertense (18509)
Hemphillian10.3 - 4.9Mexico (Hidalgo) Gomphotherium serridens (18746)
Hemphillian10.3 - 4.9USA (Oklahoma) Gomphotherium productus (18034)