Where: Texas (31.5° N, 105.0° W: paleocoordinates 5.9° S, 40.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Magdalena Formation, Moscovian (315.2 - 307.0 Ma)

• "Smithwick" horizon in Magadalena Fm

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collection methods: Repository: Bureau of Economic Geology, University of Texas

Primary reference: F. B. Plummer and G. Scott. 1937. Upper Paleozoic ammonites in Texas. The University of Texas Bulletin 3701:1-516 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131397: authorized by Matthew Clapham, entered by Matthew Clapham on 24.07.2012

Creative Commons license: CC BY (attribution)