UCMP 476, Mount Diablo (Eocene of the United States)

Where: Contra Costa County, California (37.8° N, 121.9° W: paleocoordinates 37.4° N, 109.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tejon Group, Bartonian (41.3 - 38.0 Ma)

• lower Tejon

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: J. O. Nomland. 1916. Corals from the Cretaceous and Tertiary of California and Oregon. Bulletin of the Department of Geology, University of California Publications 9(5):59-76 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122295: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.12.2011, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

 Carditida - Carditidae
"Venericardia planicosta" = Venericor planicosta
"Venericardia planicosta" = Venericor planicosta Lamarck 1801 clam
subsp. hornii
 Cardiida - Veneridae
Meretrix hornii Gabbb 1864 venus clam
 Cardiida - Tellinidae
Tellina remondii Gabb 1864 tellin clam
 Protobranchia - Nuculanidae
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1869 pointed nut clam
 Ficoidea - Ficidae
Ficopsis remondii Gabb 1864 fig shell
 Sorbeoconcha - Turritellidae
Turritella merriami Dickerson 1913 turret shell
 Spatangoida - Schizasteridae
Schizaster diabloensis Kew 1920 heart urchin
 Scleractinia - Thamnasteriidae
Thamnasteria sinuata n. sp. Nomland 1916 stony coral
 Scleractinia - Turbinoliidae
Turbinolia pusillanima n. sp. Nomland 1916 stony coral