Tapo Canyon (LACM 5857) (Eocene of the United States)

Where: Ventura County, California (34.3° N, 119.0° W: paleocoordinates 34.5° N, 105.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Middle Member (Sespe Formation), Uintan (46.2 - 40.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial

Reposited in the LACM

Primary reference: T. S. Kelly, E. B. Lander, D. P. Whistler, M. A. Roder, and R. E. Reynolds. 1991. Preliminary Report on a Paleontologic Investigation of the Lower and Middle Members, Sespe Formation, Simi Valley Landfill, Ventura County, California. PaleoBios 13(50):1-13 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 16787: authorized by John Alroy, entered by John Alroy on 27.09.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• from "three claystone lenses below" CS 2 horizon
LACM 5858 is at the same level, but no records are available
appears to be at the same level as CIT 180 and 217
 Rodentia - Eomyidae
Metanoiamys cf. marinus1 Chiment and Korth 1996 rodent
"Namatomys" cf. fantasma of Kelly et al. 1991, Kelly 1992b; "likely" marinus
 Rodentia -
Griphomys alecer2 Wilson 1940 rodent
 Rodentia - Ischyromyidae
Microparamys woodi n. sp.2 Kelly and Whistler 1994 rodent
"M. sp. D Wood" of Kelly et al. 1991
 Lipotyphla - Geolabididae
Batodonoides powayensis Novacek 1976 placental
Centetodon cf. aztecus Lillegraven et al. 1981 placental
 Ungulata - Protoceratidae
Leptoreodon edwardsi Stock 1936 protoceratid
 Theriiformes - Peradectidae
Peradectes californicus Stock 1936 metatherian