Unspecified localities [Santa Margarita Fm] (Miocene of the United States)

Where: Kern County, California (35.3° N, 119.3° W: paleocoordinates 34.8° N, 116.8° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Santa Margarita Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• LITHOSTRATIGRAPHY: The Santa Margarita Formation is overlain by the Kern RIver Formation, and overlies the Round Mountain Silt. AGE: Late Miocene. STRATIGRAPHIC POSITION: From unknown position within formation.

• formation-level stratigraphic resolution

Environment/lithology: offshore; pebbly, sandy shale

• LITHOLOGY: Sandy shale (probably siltstone) containing gray shale pebbles, reworked from underlying Round Mountain Silt. LITHIFICATION: Unknown.

Size classes: macrofossils, mesofossils

Reposited in the CAS, LACM, UCMP

Collection methods: quarrying,

• COLLECTORS: Multiple collectors. REPOSITORY: 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 38044: authorized by Austin Hendy, entered by Austin Hendy on 02.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropods; includes some occaisional other taxa.
Show authors, comments, and common names
Thecostraca
 Balanomorpha - Balanidae
Paraconcavus margaritanus, Tamiosoma gregaria
Paraconcavus margaritanus Zullo 1992 barnacle
Tamiosoma gregaria Conrad 1856 barnacle