UCLA 6349, Garzas Creek (Cretaceous of the United States)

Where: Stanislaus County, California (37.2° N, 121.1° W: paleocoordinates 43.3° N, 96.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Moreno Formation (Great Valley Group), Maastrichtian (72.1 - 66.0 Ma)

• Middle Maastrichtian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by R.B. Stewart in 1944; reposited in the LACM

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 185491: authorized by Matthew Clapham, entered by Matthew Clapham on 24.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Scaphopoda
 Dentaliida - Dentaliidae
? Dentalium sp. Linnaeus 1758 tusk shell
Gastropoda
 Cerithioidea - Turritellidae
Turritella chaneyi Merriam 1941 turret shell
 Neogastropoda - Perissityidae
Perissitys stantoni Stewart 1927 snail
 Sorbeoconcha - Naticidae
Polinices sp. Monfort 1810 moon snail
Bivalvia
 Mytilida - Mytilidae
Septifer sp. Récluz 1848 mussel
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Ostreida - Gryphaeidae
Pycnodonte (Pycnodonte) sp. Fischer von Waldheim 1835 oyster
Exogyra sp. Say 1820 oyster
 Ostreida - Bakevelliidae
cf. Aguileria sp. White 1887 oyster
 Pectinida - Limidae
Lima sp. Bruguière 1797 file clam
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Arcida - Cucullaeidae
"Idonearca "n. sp. A"" = Cucullaea (Idonearca)
"Idonearca "n. sp. A"" = Cucullaea (Idonearca) Conrad 1862 clam
 Arcida - Glycymerididae
"Glycymeris (Glycymeris) aff. veatchii" = Glycymerita veatchii
"Glycymeris (Glycymeris) aff. veatchii" = Glycymerita veatchii Gabb 1864 clam
 Lucinida - Mactromyidae
Clisocolus dubius Gabb 1864 clam
 Cardiida - Mactridae
? Cymbophora sp. Gabb 1869 clam
 Cardiida - Veneridae
Calva (Calva) varians Gabb 1864 venus clam
Callistalox fragilis Gabb 1869 venus clam
 Cardiida - Cardiidae
Cardiidae indet. Lamarck 1809 cockle
 Cardiida - Tancrediidae
Meekia (Meekia) sella Gabb 1864 clam