PBDB Collection

Jeff's Discovery (Eocene of the United States)

Also known as SDSNH 3276

Where: San Diego County, California (33.2° N, 117.3° W: paleocoordinates 33.4° N, 104.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: upper Member (Santiago Formation), Late/Upper Uintan (46.2 - 39.7 Ma)

• reversed polarity: Prothero 2001

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; siliciclastic sediments

Size class: macrofossils

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

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16585: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Patricia Holroyd and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

• 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

Show authors, comments, and common names

Gastropoda
-	Gastropoda indet.⁴ Gastropoda indet.⁴ Cuvier 1795 snail "high-spired pleurocerid or thiarid freshwater gastropods"
Pulmonata -	Pulmonata indet.⁴ Pulmonata indet.⁴ Cuvier 1817 pulmonate "a minimum of five (and perhaps a maximum of ten) land snail species"
Cycloneritida - Helicinidae	Helicinidae indet.⁴ Helicinidae indet.⁴ Férussac 1822 snail
Mammalia
Theriamorpha - Herpetotheriidae	"Copedelphys cf. innominata" = Herpetotherium innominatum¹ "Copedelphys cf. innominata" = Herpetotherium innominatum¹ Simpson 1928 marsupial
Theriamorpha - Peradectidae	Peradectes californicus Peradectes californicus Stock 1936 marsupial
Cimolesta - Apatemyidae	Apatemys downsi¹ Apatemys downsi¹ Gazin 1958 eutherian
Chiroptera -	Chiroptera indet. Chiroptera indet. Blumenbach 1779 bat a bat: two forms DUPLICATE REF 3537 or 3538
Acreodi - Mesonychidae	Mesonychidae indet.⁶ Mesonychidae indet.⁶ Cope 1875 condylarth
Perissodactyla - Amynodontidae	Amynodon cf. advenus¹ Amynodon cf. advenus¹ Marsh 1875 odd-toed ungulate
Perissodactyla - Hyracodontidae	? Triplopus woodi⁶ ? Triplopus woodi⁶ Stock 1936 odd-toed ungulate probably "cf. Hyracodontidae indet."
Perissodactyla -	Hesperaletes borineyi² Hesperaletes borineyi² Colbert 2006 odd-toed ungulate
Artiodactyla - Protoceratidae	Leptoreodon golzi n. sp.³ Leptoreodon golzi n. sp.³ Ludtke and Prothero 2004 protoceratid
Artiodactyla - Agriochoeridae	Protoreodon walshi⁵ Protoreodon walshi⁵ Theodor 1999 agriochoerid SDSNH 3276, 3560, 3561, 3562; "P. sp." of Walsh 1996b; "P. cf. parvus"
Artiodactyla - Oromerycidae	Protylopus sp.⁶, Protylopus stocki¹ Protylopus sp.⁶ Wortman 1898 even-toed ungulate Protylopus stocki¹ Golz 1976 even-toed ungulate
Artiodactyla - Diacodexeidae	Tapochoerus mcmillini⁷ Tapochoerus mcmillini⁷ Walsh 2000 even-toed ungulate SDSNH 3276, 3562, 3564; "? Antiacodon sp." of Walsh 1996b
Artiodactyla - Leptochoeridae	Ibarus cf. ignotus⁶ Ibarus cf. ignotus⁶ Storer 1984 even-toed ungulate
Theriamorpha -	Tapocyon dawsonae n. sp.⁸, Procynodictis progressus⁶, ? Miacis cf. hookwayi⁶ Tapocyon dawsonae n. sp.⁸ Wesley and Flynn 2003 placental Procynodictis progressus⁶ Stock 1935 placental ? Miacis cf. hookwayi⁶ Stock 1934 placental
Creodonta - Oxyaenidae	Diegoaelurus vanvalkenburghae n. gen. n. sp.⁹, cf. Apataelurus sp.⁶ Diegoaelurus vanvalkenburghae n. gen. n. sp.⁹ Zach et al. 2022 creodont cf. Apataelurus sp.⁶ Scott 1937 creodont
Creodonta -	Limnocyon sp.⁶ Limnocyon sp.⁶ Marsh 1872 creodont
Theriamorpha - Sespedectidae	Sespedectes singularis, Proterixoides davisi Sespedectes singularis Stock 1935 placental also at SDSNH 3564: Walsh 1998 DUPLICATE REF 3537 or 3538 Proterixoides davisi Stock 1935 placental Walsh 1998 DUPLICATE REF 3537 or 3538
Theriamorpha - Geolabididae	Batodonoides powayensis, Centetodon sp. Batodonoides powayensis Novacek 1976 placental Centetodon sp. Marsh 1872 placental
Theriamorpha - Oligoryctidae	Oligoryctes sp.⁶ Oligoryctes sp.⁶ Hough 1956 placental two forms; "Apternodontidae indet."
Theriamorpha -	Aethomylos simplicidens¹ Aethomylos simplicidens¹ Novacek 1976 placental
Rodentia - Sciuravidae	Sciuravus powayensis⁶ Sciuravus powayensis⁶ Wilson 1940 rodent
Rodentia - Ischyromyidae	Ischyromyidae indet., Microparamys woodi⁶, Manitshini indet.⁶, Rapamys fricki, Eohaplomys cf. tradux¹ Ischyromyidae indet. Alston 1876 rodent large DUPLICATE REF 3537 or 3538 Microparamys woodi⁶ Kelly and Whistler 1994 rodent "M. cf. D Wood" Manitshini indet.⁶ Simpson rodent Rapamys fricki Wilson 1940 rodent Eohaplomys cf. tradux¹ Stock 1935 rodent
Rodentia - Eomyidae	Metanoiamys sp.¹, cf. Paradjidaumo sp.⁶ Metanoiamys sp.¹ Chiment and Korth 1996 rodent cf. Paradjidaumo sp.⁶ Burke 1934 rodent
Rodentia -	Griphomys alecer¹ Griphomys alecer¹ Wilson 1940 rodent
Rodentia - Cylindrodontidae	Pareumys sp. Pareumys sp. Peterson 1919 rodent
Rodentia - Simimyidae	Simimys simplex Simimys simplex Wilson 1935 rodent also at SDSNH 3650 - 3564: Walsh 1997 DUPLICATE REF 3537 or 3538
Primates - Omomyidae	"Phenacolemur cf. shifrae" = Walshina shifrae, Dyseolemur pacificus, Ourayia sp. "Phenacolemur cf. shifrae" = Walshina shifrae Krishtalka 1978 tarsier DUPLICATE REF 3537 or 3538 Dyseolemur pacificus Stock 1934 tarsier Ourayia sp. Gazin 1958 tarsier
Primates - Microsyopidae	Uintasorex sp. Uintasorex sp. Matthew 1909 primate
Scenopagus
-	Scenopagus sp.⁶ Scenopagus sp.⁶ McKenna and Simpson 1959

¹Alroy 2002; ²Colbert 2006; ³Ludtke and Prothero 2004; ⁴Roth 1991; ⁵Theodor 1999; ⁶Walsh 1996; ⁷Walsh 2000; ⁸Wesley and Flynn 2003; ⁹Zach et al. 2022