Vista, Horizon 4 (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 200659: authorized by Mark Uhen, entered by Mark Uhen on 12.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Scleractinia - Dendrophylliidae
? Balanophyllia sp. Wood 1844 stony coral
Bivalvia
 Ostreida - Ostreidae
 Arcida - Arcidae
"Barbatia cf. cliffensis" = Barbatia (Cucullaearca) cliffensis
"Barbatia cf. cliffensis" = Barbatia (Cucullaearca) cliffensis Hanna 1927 clam
 Cardiida - Cardiidae
"Acanthocardia (Schedocardia) cf. brewerii" = Schedocardia brewerii
"Acanthocardia (Schedocardia) cf. brewerii" = Schedocardia brewerii Gabb 1864 cockle
 Pholadida - Corbulidae
Corbula sp. Bruguière 1789 clam
Gastropoda
 Neotaenioglossa - Calyptraeidae
Calyptraea cf. diegoana Conrad 1855 slipper shell
 Sorbeoconcha - Naticidae
Crommium cf. andersoni Dickerson 1914 moon snail
 Cerithioidea - Melanopsidae
Loxotrema cf. turritum Gabb 1869 snail
 Cerithioidea - Potamididae
Potamides (Potamides) carbonicola Cooper 1894 horn snail
 Neritoidea - Neritidae