Lowrey, NSF 835 (Cretaceous of the United States)

Where: Tehama County, California (40.0° N, 122.6° W)

• Paleocoordinates: 46.3° N, 74.6° W (Wright 2013)

• coordinate based on nearby landmark

• hand sample-level geographic resolution

When: Albian (113.2 - 100.5 Ma)

• group of beds-level stratigraphic resolution

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

• dark-gray limestone nodules (calcilutite) in dark-gray mudstones

Size class: microfossils

Preservation: replaced with pyrite

Collection methods: chemical, hydrochloric, 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 54071: authorized by Wolfgang Kiessling, entered by Martin Riess on 22.09.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

Protozoa
 Nassellaria - Pseudodictyomitridae
 Nassellaria - Xitidae
Xitus spineus radiolarian
Xitus pulcher Pessagno 1977 radiolarian
 Nassellaria - Ultranaporidae
"Ultranapora durhami" = Napora durhami, "Ultranapora dumitricai" = Napora, "Ultranapora praespinifera" = Napora
"Ultranapora durhami" = Napora durhami Pessagno 1977 radiolarian
"Ultranapora dumitricai" = Napora radiolarian
"Ultranapora praespinifera" = Napora radiolarian
 Nassellaria - Archaeodictyomitridae
Zifondium lassenensis Pessagno 1977 radiolarian
 Spumellaria - Hagiastridae
Crucella sp. Pessagno 1971 radiolarian
 Spumellaria - Patulibracchiidae