Where: El Paso County, Texas (31.8° N, 106.5° W: paleocoordinates 16.9° S, 80.3° W)

• coordinate based on nearby landmark

When: Second Value Formation, Edenian (451.0 - 450.2 Ma)

• "Top of the lower massive limestone Member of the Second Value Formation., Montoya Group.", in Flower (1957)

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: R. H. Flower. 1957. The Ordovician Development of the Actinoceratida, with notes on Actinoceroid Morphology and Ordovician Stratigraphy. State Bureau of Mines and Mineral Resources New Mexico Institute of Mining and Technology, Memoir 2:1-59 [B. Kröger/B. Kröger/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172562: authorized by Björn Kröger, entered by Björn Kröger on 11.08.2015

Creative Commons license: CC BY (attribution)