CAS Loc. 1284 - Sand Flat [Pacheco Gp] (Cretaceous of the United States)

Where: Shasta County, California (40.7° N, 122.4° W)

• Paleocoordinates: 49.9° N, 82.4° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pacheco Group, Turonian (93.9 - 89.8 Ma)

• No stratigraphic data reported. Middle Turonian in age.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• No paleoenvironmental data reported.
• No lithologic data reported.

Size class: macrofossils

Reposited in the CAS

• Collected by Anderson. Unknown identifier. Collections likely to reposited at CAS.

Primary reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44212: authorized by Austin Hendy, entered by Austin Hendy on 04.09.2004

Creative Commons license: CC0 (CC0)

Taxonomic list

• Not exhaustive, but likely to be representative.
Cephalopoda
 Ammonitida - Muniericeratidae
"Pachydiscus aff. ashlandicus" = Tragodesmoceras ashlandicum
"Pachydiscus aff. ashlandicus" = Tragodesmoceras ashlandicum Anderson 1902 ammonite
Gastropoda
 Sorbeoconcha - Naticidae
Gyrodes expansa Gabb 1864 moon snail
 Sorbeoconcha - Aporrhaidae
"Pugnellus manubriatus" = Gymnarus manubriatus
"Pugnellus manubriatus" = Gymnarus manubriatus Gabb 1864 snail
 Pseudomelanoidea - Pseudomelaniidae
"Acteonina californica" = Paosia californica
"Acteonina californica" = Paosia californica Gabb 1864 snail
Bivalvia
 Arcida - Glycymerididae
"Glycymeris shastensis" = Glycymerita veatchii
"Glycymeris shastensis" = Glycymerita veatchii Gabb 1864 clam
 Trigoniida - Megatrigonioidae
"Trigonia aff. evansana" = Pterotrigonia evansana
"Trigonia aff. evansana" = Pterotrigonia evansana Meek 1864 clam
 Trigoniida - Steinmanellidae
"Trigonia fitchi" = Louella fitchi, "Trigonia leana" = Yaadia leana
"Trigonia fitchi" = Louella fitchi Packard 1921 clam
"Trigonia leana" = Yaadia leana Gabb 1900 clam
 Cardiida - Veneridae
Cyprimeria moorei Popenoe 1937 venus clam
 Pholadida - Pleuromyidae
Pleuromya sp. Meek 1873 clam