Also known as A 3529

Where: Baja California Sur, Mexico (26.0° N, 111.1° W: paleocoordinates 25.8° N, 109.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: San Marcos Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

• Resting on the Comondu Formation is about 200 ft of volcanic gravels, sandstones, and siltstones; many of the finer clastics contain fossils. The fossils indicate correlation to the San Marcos Formation of California (lower Pliocene). Collected from 20 ft higher than A 3528.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, shelly/skeletal sandstone and shelly/skeletal conglomerate

Size class: macrofossils

Preservation: mold/impression

Reposited in the UCMP

Collection methods: quarrying,

• Material reposited in the UCMP collections

Primary reference: J. W. Durham. 1950. 1940 E.W. Scripps cruise to the Gulf of California. Part II - Megascopic paleontology and marine stratigraphy. Geological Society of America Memoir 43(2):1-194 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 43846: authorized by Austin Hendy, entered by Austin Hendy on 26.08.2004

Creative Commons license: CC BY (attribution)