UCMP B-773, Long Canyon (Cretaceous to of the United States)

Also known as 31-51-1F

Where: Stanislaus County, California (37.4° N, 121.3° W: paleocoordinates 37.9° N, 82.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Adobe Flat Shale Member (Panoche Formation), Cenomanian to Cenomanian (100.5 - 89.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified conglomerate

Size class: macrofossils

Collected by M. Maddock in 1952; reposited in the UCMP

Primary reference: W. P. Elder and J. W. Miller. 1993. Map and checklists of Jurassic and Cretaceous macrofossil localities within the San Jose 1:100,000 Quadrangle, California, and discussion of paleontological results. United States Geological Survey Open-File Report 93-503:1-49 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 185413: authorized by Matthew Clapham, entered by Matthew Clapham on 22.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ostreida - Pteriidae
? Phelopteria sp. Stephenson 1953 pearl oyster
 Cardiida - Mactridae
? Cymbophora sp. Gabb 1868 clam
 Cardiida - Veneridae
Calva sp. Popenoe 1937 venus clam
 Lucinida - Lucinidae
? Lucinidae indet. Fleming 1828 clam
Gastropoda indet. Cuvier 1797 snail
 Stromboidea - Aporrhaidae
Arrhoges ? californicus Gabb 1864 snail
 Naticoidea - Naticidae
Natica ? conradiana Gabb 1864 moon snail
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell