PBDB Taxon

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

Teleoceras medicornutum

Mammalia - Perissodactyla - Rhinocerotidae

Taxonomy

Teleoceras medicornutum was named by Osborn (1904) [as "medicornutus"].

Synonyms

Teleoceras (Mesoceras) thomsoni was named by Cook (1930). Its type specimen is DMNS 945, a skull, and it is a 3D body fossil.

It was synonymized subjectively with Teleoceras medicornutum by Prothero (2005).
Aphelops planiceps was named by Osborn (1904). Its type specimen is AMNH 9369 and is a 3D body fossil. Its type locality is Pawnee Buttes (Upper Beds), which is in a Miocene terrestrial horizon in Colorado.

It was recombined as Teleoceras planiceps by Matthew (1918); it was synonymized subjectively with Teleoceras medicornutum by Matthew (1932) and Prothero (2005).
Teleoceras thomsoni was named by Cook (1930) [made type of subgenus Mesoceras, never raised to genus level].

It was synonymized subjectively with Teleoceras medicornutum by Woods and Stucky (1992) and Prothero (2005).

Synonymy list

Year	Name and author
1904	Aphelops planiceps Osborn
1904	Teleoceras medicornutum Osborn
1904	Aphelops planiceps Osborn p. 321 fig. 18
1918	Teleoceras planiceps Matthew
1930	Teleoceras thomsoni Cook
1930	Teleoceras (Mesoceras) thomsoni Cook p. 49
2005	Teleoceras medicornutum Prothero p. 99

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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	()
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Theriamorpha	(Rowe 1993)

Rank	Name	Author
—	Theriiformes	()
—	Trechnotheria
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Laurasiatheria
—	Scrotifera
—	Euungulata
—	Panperissodactyla
superorder	Perissodactylamorpha
order	Perissodactyla	()
—	Tapiromorpha	(Haeckel 1873)
—	Ceratomorpha	(Wood 1937)
superfamily	Rhinocerotoidea
family	Rhinocerotidae
subfamily	Rhinocerotinae
tribe	Rhinocerotini
subtribe	Teleoceratina	(Hay 1902)
genus	Teleoceras
species	medicornutum

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.

†Teleoceras medicornutum Osborn 1904

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Invalid names: Aphelops planiceps Osborn 1904 [synonym], Teleoceras (Mesoceras) thomsoni Cook 1930 [synonym], Teleoceras thomsoni Cook 1930 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

terrestrialsubc

Locomotion:

actively mobilec

Life habit:

amphibiousg

Diet:

grazerg

Reproduction:

viviparoussubc

Created:

2005-08-31 15:13:50

Modified:

2009-01-04 12:32:14

Source: g = genus, subc = subclass, c = class, subp = subphylum

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

Age range: base of the Barstovian to the top of the Clarendonian or 16.30000 to 9.40000 Ma

Collections (48 total)

Time interval	Ma	Country or state	Original ID and collection number
Miocene	23.03 - 5.333	USA (Colorado)	Teleoceras sp. (18310)
Miocene	23.03 - 5.333	USA (Nevada)	Teleoceras medicornutum (18989)
Miocene	23.03 - 5.333	USA (Nebraska)	Teleoceras medicornutum (18049)
Hemingfordian	20.43 - 15.97	USA (Nebraska)	Teleoceras medicornutum (17998 17999) Teleoceras thomsoni (17969)
Hemingfordian	20.43 - 15.97	USA (Colorado)	Teleoceras medicornutum (17908)
Late/Upper Hemingfordian - Early/Lower Barstovian	20.43 - 12.5	USA (Nevada)	Teleoceras medicornutum (18866)
Barstovian	16.3 - 12.5	USA (Nebraska)	Teleoceras medicornutum (18119 18125 18144 18153 18281 18337 18345 18361) Teleoceras sp. (18124)
Barstovian	16.3 - 12.5	USA (Oregon)	Teleoceras medicornutum (19011 19092)
Barstovian	16.3 - 12.5	USA (Texas)	Teleoceras medicornutum (18646 18650 18673)
Barstovian	16.3 - 12.5	USA (Colorado)	Teleoceras medicornutum (18203)
Barstovian	16.3 - 12.5	USA (Nevada)	Teleoceras medicornutum (18924 19103)
Early/Lower Barstovian	16.3 - 12.5	USA (Texas)	Teleoceras medicornutum (18665 18674)
Early/Lower Barstovian	16.3 - 12.5	USA (Nebraska)	Teleoceras medicornutum (17880 17903 17904 17905 17955 17956 17972 17976 17983 17985 18004 18011 18019)
Barstovian - Clarendonian	16.3 - 9.4	USA (Colorado)	Teleoceras sp. (18445)
Barstovian - Clarendonian	16.3 - 9.4	USA (Nebraska)	Teleoceras medicornutum (18270) Teleoceras sp. (18077)
Clarendonian	12.5 - 9.4	USA (Nebraska)	Teleoceras medicornutum (18148 18217 18242 18260 18465)