Freeman Silt (Miocene to of the United States)

Where: Kern County, California (35.3° N, 119.3° W: paleocoordinates 34.4° N, 114.0° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Freeman Silt Formation, Early/Lower Miocene to Early/Lower Miocene (23.0 - 11.6 Ma)

• The type section for the Freeman Silt comprises 328 ft of core. This interval consists of massive gray micaceous sandy to clayey shale (siltstone?). Overlies the Jewett Sand and is overlain by the Oclese Sand above.

• formation-level stratigraphic resolution

Environment/lithology: coastal; concretionary, micaceous, gray, silty, sandy shale

• Massive gray micaceous sandy to clayey shale (siltstone?)

Size class: macrofossils

Preservation: mold/impression, concretion

Reposited in the CAS, LACM, UCMP

Collection methods: quarrying,

• Collections housed at various institutes: USGS (Wasington and Menlo Park), UCMP, LACM, CAS, Stanford University, UCLA, UCR.

Primary reference: W.O. Addicott. 1970. Miocene Gastropods and Biostratigraphy of the Kern River Area, California. United States Geological Survey Professional Paper 642:1-172 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38028: authorized by Austin Hendy, entered by Austin Hendy on 31.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for gastropods; includes some occaisional other taxa