Where: Mexico (20.7° N, 97.7° W: paleocoordinates 21.4° N, 91.8° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Alazan Group, Early/Lower Oligocene (33.9 - 28.4 Ma)
• 4 feet above base of exposure, overlying stations 53 and 54. Woodring (1966): this is the Palma Real Formation.
• formation-level stratigraphic resolution
Environment/lithology: marine; lithified, gray, silty claystone
Size class: macrofossils
Primary reference: C. W. Cooke. 1928. New Vicksburg (Oligocene) Mollusks From Mexico. Proceedings from the United States National Museum 73(10):1-11 [A. Miller/K. Bulinski]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 61231: authorized by Arnold Miller, entered by Kate Bulinski on 31.05.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
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