Jeff's Discovery: Late/Upper Uintan, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
Peradectes californicus (Stock 1936)
Peratherium cf. innominatum Simpson 1928
Walsh 1996
    = Copedelphys cf. innominata Simpson 1928
Alroy 2002
recombined as Herpetotherium innominatum
"P. sp."
Mammalia - Perissodactyla - Hyracodontidae
? Triplopus woodi Stock 1936
Walsh 1996
probably "cf. Hyracodontidae indet."
Mammalia - Perissodactyla - Amynodontidae
Amynodontidae indet. Scott and Osborn 1883
Walsh 1996
    = Amynodon cf. advenus Marsh 1875
Alroy 2002
Mammalia - Perissodactyla
Tapiroidea indet. Gill 1872
Colbert and Schoch 1998
    = informal Colbert tapirid sp.
Alroy 2002
Walsh 1996b; "Dilophodon sp."
    = Hesperaletes borineyi Colbert 2006
Colbert 2006
Mammalia - Diacodexeidae
Tapochoerus mcmillini Walsh 2000
Walsh 2000
SDSNH 3276, 3562, 3564; "? Antiacodon sp." of Walsh 1996b (1 measurement)
Mammalia - Oromerycidae
Protylopus sp. Wortman 1898
Walsh 1996
Protylopus sp. Wortman 1898
Walsh 1996
    = Protylopus stocki Golz 1976
Alroy 2002
Mammalia - Protoceratidae
Leptoreodon sp. Wortman 1898
    = Leptoreodon golzi n. sp. Ludtke and Prothero 2004
Ludtke and Prothero 2004
Mammalia - Agriochoeridae
Protoreodon walshi Theodor 1999
Theodor 1999
SDSNH 3276, 3560, 3561, 3562; "P. sp." of Walsh 1996b; "P. cf. parvus"
Mammalia - Leptochoeridae
Ibarus cf. ignotus Storer 1984
Walsh 1996
Mammalia - Creodonta - Oxyaenidae
Diegoaelurus vanvalkenburghae n. gen., n. sp. Zach et al. 2022
Zach et al. 2022
cf. Apataelurus sp. Scott 1937
Walsh 1996
Mammalia - Creodonta
Limnocyon sp. Marsh 1872
Walsh 1996
Mammalia
Tapocyon occidentalis Stock 1934
Walsh 1996
(1 measurement)
    = Tapocyon dawsonae n. sp. Wesley and Flynn 2003
Wesley and Flynn 2003
? Miacis cf. hookwayi Stock 1934
Walsh 1996
Procynodictis progressus (Stock 1935)
Walsh 1996
Mammalia - Acreodi - Mesonychidae
Mesonychidae indet. Cope 1875
Walsh 1996
Mammalia - Oligoryctidae
Oligoryctes sp. Hough 1956
Walsh 1996
two forms; "Apternodontidae indet."
Mammalia - Geolabididae
Centetodon sp. Marsh 1872
Batodonoides powayensis Novacek 1976
Mammalia - Sespedectidae
Sespedectes singularis Stock 1935
also at SDSNH 3564: Walsh 1998 DUPLICATE REF 3537 or 3538
Proterixoides davisi Stock 1935
Walsh 1998 DUPLICATE REF 3537 or 3538 (6 measurements)
Mammalia
Aethomylos sp. Novacek 1976
Walsh 1996
    = Aethomylos simplicidens Novacek 1976
Alroy 2002
Mammalia - Rodentia - Cylindrodontidae
Pareumys sp. Peterson 1919
Mammalia - Rodentia - Simimyidae
Simimys simplex (Wilson 1935)
also at SDSNH 3650 - 3564: Walsh 1997 DUPLICATE REF 3537 or 3538
Mammalia - Rodentia - Ischyromyidae
Ischyromyidae indet. Alston 1876
large DUPLICATE REF 3537 or 3538
Eohaplomys sp. Stock 1935
Walsh 1996
    = Eohaplomys cf. tradux Stock 1935
Alroy 2002
Rapamys fricki Wilson 1940
Manitshini indet. Simpson
Walsh 1996
Microparamys woodi Kelly and Whistler 1994
Walsh 1996
"M. cf. D Wood"
Mammalia - Rodentia
Griphomys sp. Wilson 1940
Walsh 1996
    = Griphomys alecer Wilson 1940
Alroy 2002
Mammalia - Rodentia - Eomyidae
cf. Paradjidaumo sp. Burke 1934
Walsh 1996
Namatomys sp. Black 1965
    = Metanoiamys sp. Chiment and Korth 1996
Alroy 2002
DUPLICATE REF 3537 or 3538
Mammalia - Rodentia - Sciuravidae
Sciuravus powayensis Wilson 1940
Walsh 1996
Mammalia - Primates - Microsyopidae
Uintasorex sp. Matthew 1909
Mammalia - Primates - Omomyidae
Dyseolemur pacificus Stock 1934
Ourayia sp. Gazin 1958
Phenacolemur cf. shifrae Krishtalka 1978
recombined as Walshina shifrae
DUPLICATE REF 3537 or 3538
Mammalia - Chiroptera
Chiroptera indet. Blumenbach 1779
a bat: two forms DUPLICATE REF 3537 or 3538
Mammalia - Apatemyidae
Apatemys sp. Marsh 1872
Walsh 1996
    = Apatemys downsi Gazin 1958
Alroy 2002
Gastropoda
Gastropoda indet. Cuvier 1795
Roth 1991
"high-spired pleurocerid or thiarid freshwater gastropods"
Gastropoda - Cycloneritida - Helicinidae
Helicinidae indet. Férussac 1822
Roth 1991
Gastropoda
Pulmonata indet. Cuvier 1817
Roth 1991
"a minimum of five (and perhaps a maximum of ten) land snail species"
unclassified
Scenopagus sp. McKenna and Simpson 1959
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:33.4° North, 104.1° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 2-3
*Period:Early/Lower Tertiary *Epoch:Late/Upper Eocene
*Local age/stage:Late/Upper Uintan
Key time interval:Late/Upper Uintan
Age range of interval:46.20000 - 39.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Santiago Member:upper
Local section:Sntgo Local bed:2
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: reversed polarity: Prothero 2001
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:SDSNH Locs. 3560 - 3564 also belong to this L.F., but all small mammals are present at 3276, and most of the large mammals appear to be present here as well
Metadata
Also known as:SDSNH 3276
Database number:16585
Authorizer:J. Alroy, J. Marcot, P. Holroyd Enterer:J. Alroy, P. Holroyd, J. Marcot
Modifier:M. Uhen Research group:vertebrate
Created:2002-05-15 00:00:00 Last modified:2019-04-11 10:28:33
Access level:the public Released:2002-05-15 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]
6231 M. W. Colbert and R. M. Schoch. 1998. Tapiroidea and other moropomorphs. In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), Evolution of Tertiary mammals of North America 569-582 [J. Alroy/J. Alroy/J. Alroy]
51445 J. A. Ludtke and D. R. Prothero. 2004. Taxonomic revision of the Middle Eocene (Uintan-Duchesnean) protoceratid Leptoreodon (Mammalia: Artiodactyla). In S. G. Lucas, K. E. Zeigler, P. E. Kondrashov (eds.), Paleogene Mammals 26:101-112 [J. Marcot/J. Marcot]
7758 D. R. Prothero. 2001. Magnetic stratigraphy of the middle Eocene Santiago Formation, San Diego and Orange counties, California. Magnetic Stratigraphy of the Pacific Coast Cenozoic (D. R. Prothero, ed.) 107-118 [J. Alroy/J. Alroy/J. Alroy]
57519 B. Roth. 1991. Tropical ‘physiognomy’ of a land snail faunule from the Eocene of southern California [USA]. Malacologia 33:281-288 [P. Holroyd/P. Holroyd]
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]
3543 S. L. Walsh. 2000. Bunodont artiodactyls (Mammalia) from the Uintan (middle Eocene) of San Diego County, California. Proceedings of the San Diego Society of Natural History 37:1-27 [J. Alroy/J. Alroy/J. Alroy]
80774 S.P. Zach, A.W. Poust, and H. Wagner. 2022. Diegoaelurus, a new machaeroidine (Oxyaenidae) from the Santiago Formation (late Uintan) of southern California and the relationships of Machaeroidinae, the oldest group of sabertooth mammals. PeerJ 10:e13032:1-27 [P. Holroyd/P. Holroyd]