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Malthacolestes osborni

Mammalia - Dryolestidae

Taxonomy
Malthacolestes osborni was named by Simpson (1927). Its type specimen is YPM 13751, a maxilla (part of right maxilla with M1-2), 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 is the type species of Malthacolestes.

It was synonymized subjectively with Melanodon oweni by Prothero (1981).

Synonymy list
YearName and author
1927Malthacolestes osborni Simpson p. 414
1929Malthacolestes osborni Simpson p. 82
1930Malthacolestes osborni Hay p. 374
1979Malthacolestes osborni Kraus p. 164

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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
—Cladotheria
—Dryolestoidea(Butler 1939)
familyDryolestidaeMarsh 1879
genusMalthacolestes
speciesosborni

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.

†Malthacolestes osborni Simpson 1927
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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: Hendy et al. 2009, Hopson 1973, Carroll 1988, Luo et al. 2003

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) Malthacolestes osborni (type locality: 12816)