Morro Bay (Miocene to of the United States)

Also known as UCMP V75025

Where: San Luis Obispo County, California (35.4° N, 120.9° W: paleocoordinates 35.0° N, 118.3° W)

• coordinate estimated from map

When: Pismo Formation, Late/Upper Miocene to Late/Upper Miocene (11.6 - 3.6 Ma)

Environment/lithology: marine; unlithified, fine-grained, silty sandstone and shale

• massive buff unconsolidated fine silty sandstone, somewhat bituminous, with burrow fillings, root casts, and molds of pelecypods

Size class: macrofossils

Preservation: cast, original phosphate

Reposited in the UCMP

Primary reference: D. P. Domning. 1978. Sirenian evolution in the North Pacific Ocean. University of California Publications in Geological Sciences 118:1-176 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52203: authorized by Mark Uhen, entered by Mark Uhen on 01.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Sirenia - Dugongidae
Dusisiren "sp. B"
Dusisiren "sp. B" Domning 1978 dugong
Bivalvia
 Pectinida - Pectinoidae
Lyropecten crassicardo
Lyropecten crassicardo Conrad 1856 scallop
 Ostreida - Ostreidae
Crassostrea titan
Crassostrea titan Conrad 1853 oyster