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Triisodontidae

Mammalia - Acreodi - Triisodontidae

Taxonomy
Triisodontidae was named by Scott (1892). Its type is Triisodon. It was considered paraphyletic by Zhou et al. (1995).

It was reranked as the subfamily Triisodontinae by Matthew (1937) and Zhou et al. (1995).

It was assigned to Creodonta by Hay (1902); to Mesonychoidae by Hay (1930); to Mesonychidae by Matthew (1937); to Mesonychia by Zhou et al. (1995); and to Acreodi by McKenna and Bell (1997) and Tabuce et al. (2011).

Synonymy list
YearName and author
1892Triisodontidae Scott p. 300
1902Triisodontidae Hay p. 747
1930Triisodontidae Hay p. 465
1937Triisodontinae Matthew p. 74
1995Triisodontinae Zhou et al. p. 394
1997Triisodontidae McKenna and Bell p. 366
2011Triisodontidae Tabuce et al. p. 152

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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()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
orderAcreodiMatthew 1909
familyTriisodontidae
familyTriisodontidae

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.

Fm. †Triisodontidae Scott 1892
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G. †Eoconodon Matthew and Granger 1921
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†Eoconodon copanus Van Valen 1978
†Eoconodon coryphaeus Cope 1885
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Invalid names: Mioclaenus bathygnathus Cope 1888 [synonym], Triisodon biculminatus Cope 1888 [synonym]
†Eoconodon gaudrianus Cope 1888
†Eoconodon ginibitohia Clemens and Williamson 2005
†Eoconodon hutchisoni Clemens 2011
†Eoconodon nidhoggi Van Valen 1978
G. †Goniacodon Scott 1892
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†Goniacodon hiawathae Van Valen 1978
†Goniacodon levisanus Cope 1883
G. †Stelocyon Gingerich 1978
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†Stelocyon arctylos Gingerich 1978
G. †Triisodon Cope 1881
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Invalid names: Triisodon rusticus Cope 1884 [synonym]
†Triisodon quivirensis Cope 1881
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Invalid names: Sarcothraustes antiquus Cope 1882 [synonym], Triisodon conidens Cope 1882 [synonym]
Invalid names: Sarcothraustes Cope 1882 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: omnivoref
Reproduction: viviparoussubc
Comments: morphology suggests "omnivory with some degree of carnivory and/or carrion-feeding"f
Created: 2011-04-24 19:43:41
Modified: 2011-04-24 04:43:41
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Tabuce et al. 2011, Lillegraven 1979, Carroll 1988, Ji et al. 2002, Hendy et al. 2009

Age range: Torrejonian or 63.80000 to 60.90000 Ma

Collections (47 total)


Time interval Ma Country or state Original ID and collection number
Pu366.0 - 63.3USA (Montana) Eoconodon hutchisoni (143205) Eoconodon nidhoggi, Eoconodon hutchisoni (14738 218647)
Puercan66.0 - 63.3USA (Utah) Eoconodon sp. (14791) Goniacodon hiawathae (14790)
Puercan66.0 - 63.3USA (Montana) Eoconodon hutchisoni (14799 140079 218651 218655) Eoconodon nidhoggi (14745 218649 218650) Eoconodon nidhoggi, Eoconodon hutchisoni (218648) Eoconodon sp., Eoconodon sp. (14766)
Puercan66.0 - 63.3USA (New Mexico) Eoconodon coryphaeus (14662) Eoconodon coryphaeus, Eoconodon gaudrianus (14703) Eoconodon gaudrianus (14794) Eoconodon sp., Eoconodon coryphaeus, Eoconodon gaudrianus, Eoconodon ginibitohia (14760)
Puercan66.0 - 63.3USA (Colorado) Eoconodon coryphaeus (205932 205934)
Puercan66.0 - 63.3USA (Wyoming) Eoconodon sp. (14710 14731 14808) Triisodontinae indet. (14805)
Puercan66.0 - 63.3Canada (Saskatchewan) Eoconodon sp. (14768)
Torrejonian63.8 - 60.9USA (Utah) Goniacodon sp. (14830)
Torrejonian63.8 - 60.9USA (Wyoming) Goniacodon levisanus (14886 14912)
Torrejonian63.8 - 60.9USA (New Mexico) Goniacodon levisanus (14812 14825 14832 14893) Goniacodon levisanus, Triisodon crassicuspis, Triisodon quivirensis (14824) Goniacodon levisanus, Triisodon quivirensis (14865 14891 14892) Triisodon antiquus (14862) Triisodon quivirensis (14834 14873 14890) Triisodon sp. (14868) Triisodon sp., Goniacodon levisanus (14815 14816)
Torrejonian63.8 - 60.9Canada (Alberta) Goniacodon levisanus (143200)
Tiffanian61.7 - 56.8USA (Montana) Goniacodon levisanus (15010 133180) Stelocyon arctylos (15020)