Rancho del Oro: Uintan, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
Tapocyon sp. Stock 1934
Walsh 1996
    = Tapocyon occidentalis Stock 1934
Alroy 2002
synonym of Tapocyon robustus
Mammalia - Carnivora - Miacidae
Miocyon cf. scotti (Wortman and Matthew 1899)
Walsh 1996
Mammalia - Perissodactyla - Hyracodontidae
? Triplopus woodi Stock 1936
Walsh 1996
probably "cf. Hyracodontidae indet."
Mammalia - Perissodactyla
Tapiroidea informal new genus, sp. A [M.W. Colbert 1993]
Walsh 1996
at SDSNH 3433: Rasmussen et al. 1995
    = Hesperaletes borineyi Colbert 2006
Colbert 2006
Mammalia - Perissodactyla - Brontotheriidae
Brontotheriidae indet. (Marsh 1873)
Walsh 1996
compared to Duchesneodus uintensis; at SDSNH 3433: Rasmussen et al. 1995
Mammalia - Oromerycidae
Protylopus sp. Wortman 1898
Walsh 1996
    = Protylopus stocki Golz 1976
Alroy 2002
Mammalia - Protoceratidae
Leptoreodon sp. Wortman 1898
Mammalia - Agriochoeridae
Protoreodon walshi Theodor 1999
Theodor 1999
SDSNH 3433, 3436, 3445; "P. sp." of Walsh 1996b; "P. cf. parvus"
Mammalia - Sespedectidae
Proterixoides davisi Stock 1935
1 specimen
at SDSNH 3445: Walsh 1998 DUPLICATE REF 3537 or 3538
Sespedectes sp. Stock 1935
Walsh 1996
    = Sespedectes singularis Stock 1935
Alroy 2002
Mammalia - Geolabididae
Batodonoides powayensis Novacek 1976
Mammalia - Rodentia - Ischyromyidae
Ischyromyidae indet. Alston 1876
Eohaplomys sp. Stock 1935
Walsh 1996
    = Eohaplomys cf. tradux Stock 1935
Alroy 2002
Microparamys woodi Kelly and Whistler 1994
Walsh 1996
"M. D Wood"; at SDSNH 3433: Rasmussen et al. 1995
Mammalia - Rodentia
Griphomys alecer Wilson 1940
Walsh 1996
Mammalia - Rodentia - Eomyidae
Namatomys sp. Black 1965
    = Metanoiamys sp. Chiment and Korth 1996
Alroy 2002
DUPLICATE REF 3537 or 3538
Mammalia - Rodentia - Simimyidae
Simimys simplex (Wilson 1935)
at SDSNH 3433: Rasmussen et al. 1995; also at SDSNH 3436, 3441, 3444, 3449, 3451, 3463, 3466: Walsh 1997 DUPLICATE REF 3537 or 3538
Mammalia - Rodentia - Cylindrodontidae
Pareumys sp. Peterson 1919
Mammalia - Primates - Omomyidae
Dyseolemur sp. Stock 1934
Walsh 1996
(4 measurements)
    = Dyseolemur pacificus Stock 1934
Alroy 2002
specimen from SDSNH 3433 described by Rasmussen et al. 1995
Omomyidae indet. Gazin 1958
Walsh 1996
    = Ourayia sp. Gazin 1958
Alroy 2002
Mammalia - Primates - Microsyopidae
Uintasorex sp. Matthew 1909
at SDSNH 3433: Rasmussen et al. 1995 DUPLICATE REF 3537 or 3538
Mammalia
Peradectes californicus (Stock 1936)
Walsh 1996
see common names

Geography
Country:United States State/province:California County:San Diego
Coordinates: 33.2° North, 117.3° West (view map)
Paleocoordinates:33.5° North, 104.1° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
Stage:Lutetian 10 m.y. bin:Cenozoic 2
*Period:Tertiary
Key time interval:Uintan
Age range of interval:46.20000 - 40.40000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Santiago Member:upper
Local section:Sntgo Local bed:2
Local order:bottom to top
Lithology and environment
Primary lithology: "siliciclastic"
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:while the small mammals are listed separately for each locality, the large mammals are not
does not include SDSNH 3438, 3439, and 3447, this is a lapsus: Walsh 1996b
Metadata
Also known as:SDSNH 3431-3437, 3441, 3442, 3444-3446, 3449, 3451, 3461-3464, 3466, 3467
Database number:16615
Authorizer:J. Alroy, J. Marcot Enterer:J. Alroy, J. Marcot
Modifier:M. Clapham Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2017-04-15 18:08:06
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

3538. S. L. Walsh. 1991. Eocene mammal faunas of San Diego County. Pacific Section SEPM 68:161-178 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
54688 M. W. Colbert. 2006. Hesperaletes (Mammalia : Perissodactyla), a new tapiroid from the middle Eocene of southern California. Journal of Vertebrate Paleontology 26(3):697-711 [J. Marcot/J. Marcot]
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]