Camp San Onofre: Uintan - Duchesnean, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Igaunidae indet.
"unidentified iguanid, Form B"
Mammalia - Rodentia - Ischyromyidae
Microparamys tricus (Wilson 1940)
10 specimens
Lillegraven 1977 (1 measurement)
Mammalia - Rodentia
Griphomys toltecus n. sp. Lillegraven 1977
Lillegraven 1977 4 specimens
Griphomys alecer Wilson 1940
6 specimens
Lillegraven 1977
Mammalia - Rodentia - Eomyidae
Metanoiamys marinus n. sp. Chiment and Korth 1996
Chiment and Korth 1996 38 specimens
"Namatomys" sp., said to be a new genus (i.e., Metanoiamys) by Walsh 1991 (6 measurements)
Mammalia - Rodentia - Simimyidae
Simimys simplex (Wilson 1935)
521+ specimens
and described in detail by Lillegraven and Wilson 1975, but accidentally omitted by Walsh 1991
Mammalia - Rodentia - Cylindrodontidae
Pareumys sp. Peterson 1919
Lillegraven 1977 13 specimens
not clear why this is omitted by Golz and Lillegraven, but it is repeated by Walsh 1996b
Mammalia - Primates - Omomyidae
Chumashius balchi Stock 1933
2 specimens
Lillegraven 1980
Dyseolemur pacificus Stock 1934
2 specimens
Lillegraven 1980
Mammalia - Sespedectidae
Sespedectes singularis Stock 1935
243 specimens
(5 measurements)
    = Sespedectes stocki Novacek 1985
Novacek 1985
see Novacek 1976
cf. Proterixoides davisi Stock 1935
4 specimens
Novacek 1976
Mammalia - Perissodactyla - Amynodontidae
Amynodon reedi Stock 1939
    = Amynodon cf. advenus Marsh 1875
Walsh 1996
Mammalia - Oromerycidae
Protylopus cf. petersoni Wortman 1898
accidentally omitted by Walsh 1996b
Mammalia - Protoceratidae
Leptotragulinae indet.
invalid subgroup of Protoceratidae
omitted by Walsh 1996b, who did not list generically unidentifiable taxa
Mammalia - Agriochoeridae
Protoreodon sp. Scott and Osborn 1887
    = Protoreodon walshi Theodor 1999
Theodor 1999
Mammalia - Praetragulidae
Simimeryx cf. hudsoni Stock 1934
Mammalia
Peratherium knighti McGrew et al. 1959
3 specimens
    = Herpetotherium cf. knighti McGrew et al. 1959
Alroy 2002
Lillegraven 1976
Nanodelphys californicus (Stock 1936)
    = Peradectes californicus Stock 1936
Alroy 2002
NISP not indicated by Lillegraven 1976
Reptilia - Testudines
Chelonia indet. (Latreille 1800)
synonym of Testudines
Reptilia - Xantusiidae
Palaeoxantusia allisoni Schatzinger 1980
Reptilia
Tinosaurus cf. stenodon Marsh 1872
Reptilia - Iguanidae
Parasauromalus olseni Gilmore 1928
Reptilia - Anguidae
Pancelosaurus sp. Meszoely 1970
synonym of Odaxosaurus
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus cf. spatula
see common names

Geography
Country:United States State/province:California County:San Diego
Coordinates: 33.4° North, 117.5° West (view map)
Paleocoordinates:33.4° North, 104.7° West
Basis of coordinate:based on political unit
Time
Period:Paleogene Epoch:Eocene
*Period:Tertiary
Key time interval:Uintan - Duchesnean
Age range of interval:46.20000 - 37.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Santiago
Local section:Sntgo Local bed:2
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:fauna is heavily dominated by small mammals: Lillegraven and Wilson 1975
late Uintan or Duchesnean
Metadata
Also known as:Onofre Locality One; UCMP V-72088
Database number:16533
Authorizer:J. Alroy, P. Holroyd Enterer:J. Alroy, P. Holroyd
Modifier:M. Uhen Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2019-04-11 10:42:59
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1681. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1195 J. J. Chiment and W. W. Korth. 1996. A New Genus of Eomyid Rodent (Mammalia) from the Eocene (Uintan-Duchesnean) of Southern California. Journal of Vertebrate Paleontology 16(1):116-124 [J. Alroy/J. Alroy/J. Ju]
2232 J. A. Lillegraven. 1977. Small rodents (Mammalia) from Eocene deposits of San Diego County, California. Bulletin of the American Museum of Natural History 158(4) [J. Alroy/J. Alroy/J. Ju]
2665 M. J. Novacek. 1985. The Sespedectinae, a new subfamily of hedgehog-like insectivores. American Museum Novitates 2822:1-24 [J. Alroy/J. Alroy/K. Beard]
3400 J. M. Theodor. 1999. Protoreodon walshi, a new species of agriochoerid (Oreodonta, Artiodactyla, Mammalia) from the late Uintan of San Diego County, California. Journal of Paleontology 73(6):1179-1190 [J. Alroy/J. Alroy/J. Alroy]
3540 S. L. Walsh. 1996. Middle Eocene mammal faunas of San Diego County, California. In D. R. Prothero, R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 74-119 [J. Alroy/J. Alroy/P. Mannion]