Dry Creek, NSF 940 (Cretaceous of the United States)

Where: Tehama County, California (40.4° N, 122.5° W: paleocoordinates 40.7° N, 73.7° W)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Chickabally Member (Budden Canyon Formation), Late/Upper Aptian (122.5 - 113.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (); lithified, gray mudstone and lithified, concretionary limestone

• limestone (calcilutite) nodules in dark-gray mudstone

Size class: microfossils

Preservation: replaced with pyrite

Collection methods: chemical, hydroflouric,

Primary reference: E. Pessagno. 1977. Lower cretaceous radiolarian biostratigraphy of the Great Valley sequence and Franciscan complex, California coast ranges. Cushman Foundation for foraminiferal research, Special Publication (15)1-87 [W. Kiessling/M. Riess/M. Riess]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 54054: authorized by Wolfgang Kiessling, entered by Martin Riess on 22.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Spumellaria - Angulobracchiidae
Paronaella sp.
Paronaella sp. Pessagno 1971 radiolarian
 Spumellaria - Praeconocaryommidae
Praeconocaryomma uhlensis
 Spumellaria - Hagiastridae
Crucella sp.
Crucella sp. Pessagno 1971 radiolarian
 Nassellaria - Archaeodictyomitridae
"Thanarla conica" = Thanarla brouweri, Archaeodictyomitra vulgaris
"Thanarla conica" = Thanarla brouweri Tan Sin Hok 1927 radiolarian
Archaeodictyomitra vulgaris Pessagno 1977 radiolarian