Mason-Brady road, 1.45 miles north of Camp San Saba (Ordovician of the United States)

Where: McCulloch County, Texas (31.2° N, 98.7° W: paleocoordinates 20.0° S, 90.1° W)

• outcrop-level geographic resolution

When: Threadgill Member (Tanyard Formation), Gasconadian (485.4 - 477.7 Ma)

• called Gasconade equivalent and 2nd (middle) member of Ellenburger; now the Threadgill member of the Tanyard formation

• formation-level stratigraphic resolution

Environment/lithology: white limestone

Size class: macrofossils

Primary reference: C. L. Dake and J. Bridge. 1932. Faunal correlations of the Ellenburger limestone of Texas. Geological Society America Bulletin 43:725-741 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56499: authorized by Pete Wagner, entered by Pete Wagner on 20.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Euomphalina - Macluritidae
"Eccyliomphalus gyroceras" = Macluritella gyroceras
"Eccyliomphalus gyroceras" = Macluritella gyroceras Roemer 1852 snail