Vista, Horizon 2 (Eocene of the United States)

Also known as UCR 4865

Where: San Diego County, California (33.2° N, 117.2° W: paleocoordinates 33.9° N, 103.2° W)

• coordinate stated in text

When: Delmar Formation (La Jolla Group), Lutetian (47.8 - 41.3 Ma)

Environment/lithology: peritidal; sandstone and siltstone

• interbedded sandstone, siltstone, and claystone

Size class: macrofossils

Primary reference: C. R. Givens and M. P. Kennedy. 1976. Middle Eocene mollusks from northern San Diego County, California. Journal of Paleontology 50(5):954-975 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 200657: authorized by Mark Uhen, entered by Mark Uhen on 12.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Ostracoda
 Podocopida - Cytherettidae
Cytheretta sp.
 Podocopida - Cytherideidae
Clithrocytheridea sp.
Clithrocytheridea sp. Stephenson 1936 ostracod
Gastropoda
 Neritoidea - Neritidae
Nerita (Theliostyla) triangulata
 Cerithioidea - Potamididae
Potamides (Potamides) carbonicola
Potamides (Potamides) carbonicola Cooper 1894 horn snail
 Cerithioidea - Cerithiidae
Bittium preussi
Bittium preussi Hanna 1924 cerith snail
 Cerithioidea - Brachytrematidae
"Benoistea umpquaensis" = Benoistia
"Benoistea umpquaensis" = Benoistia snail
 Cerithioidea - Melanopsidae
Loxotrema turritum
Loxotrema turritum Gabb 1869 snail
 Neogastropoda - Muricidae
Muricopsis vistaensis n. sp.
Muricopsis vistaensis n. sp. Givens and Kennedy 1976 murex snail
 Neogastropoda - Buccinulidae
Umpquaia oregonensis
Umpquaia oregonensis Turner 1938 snail
 Neogastropoda - Buccinidae
Janiopsis sammarcosensis n. sp., Siphonalia vistaensis n. sp.
Janiopsis sammarcosensis n. sp. true whelk
Siphonalia vistaensis n. sp. Givens and Kennedy 1976 true whelk
 Neogastropoda - Fasciolariidae
Clavilithes sp.
Clavilithes sp. Swainson 1840 snail
n. sp.
 Sorbeoconcha - Naticidae
Crommium andersoni, "Ampullella schencki" = Crommium pinyonensis, Neverita (Glossulax) globosa
Crommium andersoni Dickerson 1914 moon snail
"Ampullella schencki" = Crommium pinyonensis Dickerson 1914 moon snail
Neverita (Glossulax) globosa Gabb 1869 moon snail
Bivalvia
 Nuculanida - Nuculanidae
"Nuculana (Saccella) cf. parkei" = Leda parkei
"Nuculana (Saccella) cf. parkei" = Leda parkei Anderson and Hanna 1925 pointed nut clam
as ssp. "*Nuculana (Saccella) cf. N. (S.) parkei coosensis"
 Ostreida - Ostreidae
Ostrea cf. idrianensis
 Pectinida - Anomiidae
Anomia mcgoniglensis
Anomia mcgoniglensis Hanna 1927 jingle
 Pholadida - Corbulidae
"Corbula (Caryocorbula) domenginica" = Caryocorbula domenginica
"Corbula (Caryocorbula) domenginica" = Caryocorbula domenginica Vokes 1939 clam
 Cardiida - Veneridae
Pelecyora aequilateralis
Pelecyora aequilateralis Gabb 1869 venus clam
Gymnolaemata
 Cheilostomata - Electridae
? Conopeum sp.
? Conopeum sp. Gray 1848