CSUN 1453 - Matilija Hot Springs [Matilija Sandstone] (Eocene of the United States)

Also known as LACMIP 16962; LACMIP 41453

Where: Ventura County, California (34.5° N, 119.3° W: paleocoordinates 35.2° N, 105.2° W)

• coordinate estimated from map

When: Transition other zone, Matilija Formation, Lutetian (47.8 - 41.3 Ma)

• AGE: revised to Lutetian and "Matilija Sandstone" following EPICC stratigraphic revision.

Environment/lithology: coastal; silty mudstone and sandstone

Size class: macrofossils

Preservation: coquina

Collected by Jestes (1963); R. L. Squires; reposited in the LACM

Primary reference: R. L. Squires. 1999. Middle Eocene brackish-marine mollusks from the Matilija Sandstone at Matilija Hot Springs, Ventura County, Southern California. Contributions in Science, Los Angeles County Museum 480:1-30 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 210290: authorized by Jonathan Marcot, entered by Jonathan Marcot on 28.05.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Thiaridae
"Pyrgulifera (Pyrgulifera) lajollaensis" = Pyrgulifera lajollaensis
"Pyrgulifera (Pyrgulifera) lajollaensis" = Pyrgulifera lajollaensis Hanna 1927 snail
 Cerithioidea - Potamididae
Potamides (Potamidopsis) californica Squires 1991 horn snail
Tympanotonos (Tympanotonos) californicus n. sp. Squires 1999 horn snail
Bivalvia
 Cardiida - Tellinidae
"Tellina joaquinensis" = Tellina (Angulus) joaquinensis
"Tellina joaquinensis" = Tellina (Angulus) joaquinensis Arnold 1909 tellin clam
 Cardiida - Trapezidae
Neotrapezium californicum Squires 1999 clam
 Cardiida - Veneridae
Pelecyora aequilateralis Gabb 1869 venus clam
 Ostreida - Ostreidae
Acutostrea idriaensis Gabb 1869 oyster
as Acutostrea idriaensis idriaensis