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
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 | |
Pseudodictyomitra lodogaensis radiolarian | |
"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 | |
Archaeodictyomitra simplex radiolarian
Zifondium lassenensis Pessagno 1977 radiolarian | |
Crucella sp. Pessagno 1971 radiolarian | |
Patulibracchium grapevinensis radiolarian |