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Trioracodon bisulcus

Mammalia - Eutriconodonta - Triconodontidae

Taxonomy
Triconodon bisulcus was named by Marsh (1880). Its type specimen is YPM 11851, a mandible (partial right mandible with broken P4 and M1-3), and it is a 3D body fossil. Its type locality is Quarry 9, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian fluvial-lacustrine mudstone/sandstone in the Morrison Formation of Wyoming.

It was recombined as Trioracodon bisulcus by Simpson (1928), Simpson (1929), Hay (1930), Jenkins and Crompton (1979), Kielan-Jaworowska et al. (2004).

Synonymy list
YearName and author
1880Triconodon bisulcus Marsh p. 237
1902Triconodon bisulcus Hay p. 567
1925Triconodon bisulcus Simpson p. 152 figs. 1-4
1928Trioracodon bisulcus Simpson
1929Trioracodon bisulcus Simpson p. 34
1930Trioracodon bisulcus Hay p. 369
1979Trioracodon bisulcus Jenkins and Crompton p. 75
2004Trioracodon bisulcus Kielan-Jaworowska et al. pp. 219, 246

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
orderEutriconodontaKermack et al. 1973
familyTriconodontidaeMarsh 1887
genusTrioracodon
speciesbisulcus()

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.

†Trioracodon bisulcus Marsh 1880
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialuc
Diet: insectivoreuc
Created: 2005-09-06 19:53:51
Modified: 2005-09-07 19:44:02
Source: c = class, subp = subphylum, uc = unranked clade
References: Luo et al. 2003, Carroll 1988, Hopson 1973, Hendy et al. 2009

Age range: base of the Kimmeridgian to the top of the Tithonian or 154.80000 to 143.10000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Kimmeridgian - Tithonian154.8 - 143.1USA (Wyoming) Triconodon bisulcus (type locality: 12816)