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Euthlastus cordiformis

Mammalia - Groeberida - Nototheriidae

Taxonomy
Euthlastus cordiformis was named by Simpson (1927). Its type specimen is YPM 13755, a maxilla (right maxilla with last four molars, all broken), 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 Euthlastus.

Synonymy list
YearName and author
1927Euthlastus cordiformis Simpson p. 414
1929Euthlastus cordiformis Simpson pp. 79-80
1930Euthlastes cordiformis Hay p. 374
1979Euthlastus cordiformis Kraus p. 164
1998Euthlastus cordiformis Engelmann and Callison p. 376
2004Euthlastus cordiformis Kielan-Jaworowska et al. pp. 380, 391

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
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
Marsupialia()
Didelphia
AmeridelphiaSzalay 1982
AustralidelphiaSzalay 1982
orderGroeberidaPascual et al. 1994
Herpetotheriidae(Trouessart 1879)
orderMarsupicarnivoraRide 1964
familyNototheriidae
familyNumbigilgidae
familyOdontomysopidae
orderPaucituberculataAmeghino 1894
Peradectidae(Crochet 1979)
superorderDryolestoidea(Butler 1939)
familyDryolestidaeMarsh 1879
genusEuthlastus
speciescordiformis

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.

Euthlastus cordiformis 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: scansorialf
Diet: omnivoref
Created: 2011-04-28 22:06:26
Modified: 2011-04-28 07:06:26
Source: f = family, c = class, subp = subphylum
References: Horovitz et al. 2009, Carroll 1988, Clemens 1979, Hendy et al. 2009, Hopson 1973

Age range: base of the Kimmeridgian to the top of the Tithonian or 157.30000 to 145.00000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Kimmeridgian - Tithonian157.3 - 145.0USA (Utah) Euthlastus cordiformis (53035)
Kimmeridgian - Tithonian157.3 - 145.0USA (Wyoming) Euthlastus cordiformis (type locality: 12816)