Brea Canyon (Bed CS2) (Eocene of the United States)

Also known as CIT 207

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: Sespe Formation, Uintan (46.2 - 40.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Reposited in the CIT

Primary reference: D. J. Golz and J. A. Lillegraven. 1977. Summary of known occurrences of terrestrial vertebrates from Eocene strata of southern California. Contributions to Geology, University of Wyoming 15(1):43-65 [J. Alroy/J. Alroy/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16790: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brea Canyon (CIT 127, 202, 207) NISP: 94 artiodactyls (Golz 1976) 5+ others at CIT 127 (XXX%) 83+ others at CIT 202 (XXX%) 42+ others at CIT 207 (XXX%) total 210, split about 7/147/54
records of Kelly 1990 may come from UCMP V-72066 or LACM 5616, but 5616 is in CS 3 according to according to Kelly et al. 1991
Reptilia
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Squamata -
Peltosaurus macrodon2 Brattstrom 1955 squamates
 Squamata - Boidae
Boidae indet. Gray 1825 boa
 Squamata -
Mammalia
 Primates - Omomyidae
Dyseolemur pacificus Stock 1934 tarsier
at LACM 5616, see Kelly and Whistler 1994
 Rodentia - Simimyidae
Simimys simplex Wilson 1935 rodent
Lillegraven and Wilson 1977; includes type and referred specimen of "Eumysops vetus" from CIT 207 of Wilson 1935a
 Rodentia -
Griphomys alecer n. sp. Wilson 1940 rodent
from CIT 207: Wilson 1940b
 Rodentia - Ischyromyidae
Rapamys fricki n. sp. Wilson 1940 rodent
from CIT 207: Wilson 1940a
Eohaplomys serus n. sp. Stock 1935 rodent
from CIT 207: see Stock 1935a;
Mytonomys burkei Wilson 1940 rodent
presumably includes "Leptotomus nr. burkei" of Wilson 1940a from CIT 207 and may include one of Wilson's specimens referred to "Rapamys sp. A" by Wood 1962
Tapomys sp.3 Wood 1962 rodent
 Rodentia - Cylindrodontidae
Pareumys aff. milleri3 Peterson 1919 rodent
new specimen, includes "P. sp." ( +1 = 4) of Wilson 1940c from CIT 207
 Perissodactyla - Amynodontidae
Amynodon cf. advenus3 Marsh 1875 odd-toed ungulate
 Carnivora -
Procynodictis progressus1 Stock 1935 carnivoran
 Macroscelidea - Amphilemuridae
Proterixoides davisi4 Stock 1935 elephant shrew
Sespedectes singularis Stock 1935 elephant shrew
Novacek 1976
 Ungulata - Oromerycidae
? Protylopus robustus Golz 1976 even-toed ungulate
CIT 207, see Golz 1976
Protylopus stocki Golz 1976 even-toed ungulate
CIT 207, see Golz 1976
 Ungulata - Agriochoeridae
Protoreodon pumilus Marsh 1875 agriochoerid
NISP not stated by Golz 1976
 Ungulata - Diacodexeidae
Tapochoerus egressus Stock 1934 even-toed ungulate
apparently not documented anywhere
 Ungulata - Protoceratidae
Leptoreodon stocki3 Kelly 1990 protoceratid