USGS M4669, Henry Cowell Redwoods, Felton (Paleocene of the United States)

Where: Santa Cruz County, California (37.0° N, 122.1° W: paleocoordinates 42.2° N, 99.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Locatelli Formation, Danian (66.0 - 61.6 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

• Nodular olive-gray to pale-yellowish-brown micaceous siltstone; massive arkosic sandstone locally at base

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: CC BY (attribution)

Taxonomic list

• Representative for molluscan, echinoid and arthropod taxa; does not include mentioned foraminifera
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Nuculida - Nuculidae
Acila sp. Adams and Adams 1858 divaricate nutclam