ARCTOCYONIDAE, Murray, 1866

Lofgren, Donald, Mckenna, Malcolm, Honey, James, Nydam, Randall, Wheaton, Christine, Yokote, Bryan, Henn, Lexington, Hanlon, Whitney, Manning, Stephen & Mcgee, Carter, 2014, New records of eutherian mammals from the Goler Formation (Tiffanian, Paleocene) of California and their biostratigraphic and paleobiogeographic implications, American Museum Novitates 2014 (3797), pp. 1-60 : 24

publication ID

https://doi.org/ 10.1206/3797.1

persistent identifier

https://treatment.plazi.org/id/587387C9-142F-517A-FDAA-1E20FC1AFA14

treatment provided by

Carolina

scientific name

ARCTOCYONIDAE
status

 

ARCTOCYONIDAE ?

REFERRED SPECIMEN: RAM 9660, a p2, p3, P2, or P3 from RAM locality V200613, member 4b ( fig. 6H View FIGURE 6 ).

DESCRIPTION: RAM 9660 is a large premolar with slightly crenulated enamel that is 5.75 mm in length and 4.30 mm in width if the long axis of the tooth is its anterior-posterior orientation. RAM 9660 has a large and swollen anterior cusp that is connected by a pair of posteriorly directed cristae that terminate at small cusps on the tooth margin ( fig. 6H View FIGURE 6 ). These low cusps are connected by a weakly developed cingulum or cingulid that forms the posterior (?) edge of the tooth.

DISCUSSION: RAM 9660 probably indicates the presence of an additional eutherian from the Goler Formation. RAM 9660 may be an arctocyonid, but this is uncertain, as is which tooth site RAM 9660 represents. Another possibility is that RAM 9660 represents an upper premolar of Goleroconus .

Order CONDYLARTHA Cope, 1881a

Family HYOPSONDONTIDAE Trouessart, 1897

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Procreodi

Family

Arctocyonidae

Loc

ARCTOCYONIDAE

Lofgren, Donald, Mckenna, Malcolm, Honey, James, Nydam, Randall, Wheaton, Christine, Yokote, Bryan, Henn, Lexington, Hanlon, Whitney, Manning, Stephen & Mcgee, Carter 2014
2014
Loc

HYOPSONDONTIDAE

Trouessart 1897
1897
Loc

CONDYLARTHA

Cope 1881
1881
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