PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Meniscotherium chamense

Mammalia - Phenacodontidae

Taxonomy

Meniscotherium chamense was named by Cope (1874) [genotype; also, but probably incorrectly said to be 1881]. It is the type species of Meniscotherium.

Synonyms

Hyracops socialis was named by Marsh (1892). It is the type species of Hyracops.

It was synonymized subjectively with Meniscotherium chamense by Simpson (1981), Williamson and Lucas (1992).
Meniscotherium robustum was named by Thorpe (1934). Its type specimen is YPM 10101, a skull (skull and jaws), and it is a 3D body fossil.

It was synonymized subjectively with Meniscotherium chamense by Williamson and Lucas (1992).
Meniscotherium terraerubrae was named by Cope (1881).

It was synonymized subjectively with Meniscotherium chamense by Granger (1915), Thorpe (1934), Williamson and Lucas (1992).

Synonymy list

Year	Name and author
1874	Meniscotherium chamense Cope
1875	Meniscotherium chamense Cope p. 19
1881	Meniscotherium terraerubrae Cope p. 493
1881	Meniscotherium chamense Cope p. 495
1892	Hyracops socialis Marsh
1902	Meniscotherium chamense Hay p. 605
1902	Hyracops socialis Hay p. 606
1902	Meniscotherium terraerubrae Hay p. 606
1934	Meniscotherium robustum Thorpe p. 401 figs. 1 - 6

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Panperissodactyla
—	Phenacodonta
family	Phenacodontidae	Cope 1881
subfamily	Meniscotheriinae	(Cope 1882)
genus	Meniscotherium	Cope 1874
species	chamense	Cope 1874

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.

†Meniscotherium chamense Cope 1874

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Invalid names: Hyracops socialis Marsh 1892 [synonym], Meniscotherium robustum Thorpe 1934 [synonym], Meniscotherium terraerubrae Cope 1881 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

ground dwellingf

Diet:

herbivoref

Reproduction:

viviparoussubc

Created:

2005-08-31 14:04:22

Modified:

2011-04-24 18:24:26

Source: f = family, subc = subclass, c = class, subp = subphylum

References: Hendy et al. 2009, Archibald 1998, Carroll 1988, Lillegraven 1979, Ji et al. 2002

Age range: Wasatchian or 55.80000 to 50.30000 Ma

Collections (40 total)

Time interval	Ma	Country or state	Original ID and collection number
Lysitean - Lostcabinian	55.8 - 50.3	USA (Wyoming)	Meniscotherium tapiacitis (15451)
Wasatchian	55.8 - 50.3	Mexico (Baja California)	Meniscotherium priscum (15671)
Wasatchian	55.8 - 50.3	USA (Colorado)	Meniscotherium chamense (15272 15274 15290 15294 15402 15404)
Wasatchian	55.8 - 50.3	USA (New Mexico)	Meniscotherium chamense (15430 15433 15439 15441 15443 15663)
Wasatchian	55.8 - 50.3	USA (Wyoming)	Meniscotherium chamense (15456 15457 15486 15643 15644 15665 15710 15711 15714 15839 15849 15850 15852 16064 16069 16072) Meniscotherium robustum (15662 15724 15846 15890 186943) Meniscotherium sp. (15597 15842 15889) Meniscotherium terraerubae (15910)
Wasatchian - Bridgerian	55.8 - 46.2	USA (Wyoming)	Meniscotherium chamense (15669)