Also known as UCMP V2502, Celite Company #5 quarry, John Mansfield quarry

Where: Santa Barbara County, California (34.6° N, 120.4° W: paleocoordinates 34.1° N, 117.6° W)

• coordinate estimated from map

When: Monterey Formation, Tortonian (11.6 - 7.2 Ma)

• Diatomaceous beds are considered to be the equivalent to the Temblor. Kellogg (1922) said this was early Miocene, but Demere et al. (2005) assign it to the Tortonian; formation and age after Chang & Grimm 1999 (8.2 to 7.3 Ma, Barron, pers. com). Much debate in the literature on the formation name and age of these beds. Others identify the formation as Sisquoc. Behl & Ramirez 2000 agree that the Monterey Formation is exposed in the quarry, but give an age range of 8.5-5.5 Ma (J. Barron, pers. com.)

•

•Diatom flora corresponds to Rouxia californica Zone of AKIBA (1986), Late Miocene, approximately 7.7-6.4 Ma. Taminura, Yoshihiro (USNM KEMu database entry date 12 Oct. 2010)

• formation-level stratigraphic resolution

Environment/lithology: marine; diatomite

Size class: macrofossils

Preservation: original phosphate

Reposited in the USNM

Collection methods: surface (in situ),

Primary reference: R. Kellogg. 1922. Description of the skull of Megaptera miocaena, a fossil humpback whale from the Miocene diatomaceous earth of Lompoc, California. Proceedings of the United States National Museum 61(14):1-18 [M. Uhen/M. Uhen/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 45489: authorized by Mark Uhen, entered by Mark Uhen on 25.10.2004

Creative Commons license: CC BY (attribution)