ammonites
BPW80-15B, San Hipolito Fm, Vizcaino Peninsula, Baja California Sur (Jurassic of Mexico)

Where: Baja California Sur, Mexico (26.0° N, 111.0° W: paleocoordinates 12.7° N, 53.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: San Hipolito Formation, Pliensbachian (189.6 - 183.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: slope; tuffaceous, brown, gray, green sandstone and tuffaceous, gray, silty lime mudstone

• thin to medium-bedded, poorly sorted, olive grey to light greenish brown, tuffaceous sandstone interbedded with silty and cherty tuffs and silty, tuffaceous, light grey limestone; sample from light grey slightly silty micritic limestone bed

Size class: microfossils

Preservation: original silica

Primary reference: P. A. Whalen and E.S. Carter. 2002. Pliensbachian (Lower Jurassic) Radiolaria from Baja California Sur, Mexico. Micropaleontology 48(2):97-151 [A. Miller/K. Layou/K. Layou] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33561: authorized by Arnold Miller, entered by Karen Layou on 03.08.2003, edited by Adam Kocsis