CAS 29118, Mustang Creek (Cretaceous of the United States)

Where: Merced 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: Merced Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy limestone

Size class: macrofossils

Collected by A. Bennison; reposited in the CAS

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 185758: authorized by Matthew Clapham, entered by Matthew Clapham on 12.05.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rhynchonellida -
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Carditida - Astartidae
 Neogastropoda - Perissityidae
Perissityidae indet. Popenoe and Saul 1987 snail
 Neogastropoda -
 Neogastropoda - Fasciolariidae
? Drilluta sp. Wade 1916 snail
 Stromboidea - Aporrhaidae
Pyktes sp. Popenoe 1983 snail
 Naticoidea - Naticidae
Naticidae indet. Guilding 1834 moon snail
 Heterostropha - Ringiculidae
 Architectonicoidea - Architectonicidae
? Margaritella sp. Meek and Hayden 1860 snail
 Ammonitida - Pachydiscidae
Pachydiscus sp. Zittel 1884 ammonite
 Ammonitida - Baculitidae
Baculites sp., "Baculites columna" = Trachybaculites columna
Baculites sp. Lamarck 1799 ammonite
"Baculites columna" = Trachybaculites columna Morton 1834 ammonite
 Ammonitida - Diplomoceratidae