Where: Santa Cruz County, California (37.0° N, 122.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Locatelli Formation, Danian (66.0 - 61.7 Ma)
• From lower part of formation. Oldest sedimentary sequence in Santa Cruz county; erosion remnants; as much as 240-270m of siltstone is preserved in area; rests unconformably upon crystaline basement - and is overlain unconformably by the Lompico Sandstone and Santa Margarita Sandstone
• bed-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, micaceous, brown, gray, yellow siltstone
Size class: macrofossils
Reposited in the UMMP
Collection methods: quarrying,
• Also collections at USGS, Menlo Park
Primary reference: J. C. Clark. 1981. Stratigraphy, paleontology, and geology of the Central Santa Cruz Mountains, California Coast Ranges. United States Geological Survey Professional Paper 1168:1-51 [A. Miller/A. Hendy/R. McClees-Funinan]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37511: authorized by Austin Hendy, entered by Austin Hendy on 16.03.2004
Creative Commons license: CC0 (CC0)
Taxonomic list
Bivalvia | |
Acila sp. Adams and Adams 1858 divaricate nutclam | |
Cucullaea mathewsonii Gabb 1864 clam | |
Gastropoda | |
? Surculites sp. Conrad 1865 turrid |