Also known as USGS 14033
Where: Tamaulipas, Mexico (24.9° N, 98.2° W: paleocoordinates 25.6° N, 93.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Limestone Member, Late/Upper Oligocene (28.4 - 23.0 Ma)
• The upper Oligocene in northeastern Mexico is more than 500 ft thick. Two horizons distinct in lithology and in fossil content are included: a lower limestone with a fauna allied to to that of the Chickasawhay and Suwanee Limestones, and an upper sandstone with faunas closely related to the Vicksburg Group.
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; gray, white limestone
Size class: macrofossils
Reposited in the USNM
Collection methods: quarrying,
• Collections reposited in USGS and USNM collections.
Primary reference: J. Gardner. 1945. Mollusca of the Tertiary formations of Northeastern Mexico. Geological Society of American Memoir 11 [M. Kosnik/M. Kosnik/M. Kosnik] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 43086: authorized by Austin Hendy, entered by Austin Hendy on 10.08.2004
Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)