Ellenburger Hills SE of Barnes Ranch headquarters (Ordovician of the United States)

Also known as Llano Uplift

Where: San Saba County, Texas (31.0° N, 98.5° W: paleocoordinates 20.2° S, 90.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Cordylodus angulatus conodont zone, Staendebach Member (Tanyard Formation), Gasconadian (485.4 - 477.7 Ma)

• "Staendebach member, Threadgill [certainly means Tanyard] formation" (p. 71);

•"cherts of the Tanyard formation" (p. 88). Cherts typically occur in the Standebach Member of the Tanyard. (Kupecz & Land, 1991, J. Sedim. Petr. 61(4))

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; dolomitic, ooidal, peloidal grainstone and chert

• informations on lithology are from (Kupecz & Land, 1991)

Size class: macrofossils

Preservation: cast, concretion, replaced with silica

Collection methods: BEG = Texas Bureau of Economic Geology, University of Texas

Primary reference: R. H. Flower. 1964. The Nautiloid Order Ellesmeroceratida (Cephalopoda). State Bureau of Mines and Mineral Resources New Mexico Institute of Mining and Technology, Memoir 12:234 p. [B. Kröger/T. Liebrecht/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88808: authorized by Björn Kröger, entered by Torsten Liebrecht on 21.04.2009, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Rostroconchia
 Ribeirioida - Technophoridae
Ribeiria calcifera2 Billings 1865
Gastropoda
 Euomphalina - Macluritidae
Macluritella uniangulata1 Hall 1847 snail
 Euomphalina - Ophiletidae
"Ophileta leo" = Ophileta rotuliformis2
"Ophileta leo" = Ophileta rotuliformis2 Meek 1871 snail
 Eogastropoda - Sinuopeidae
Euconia conicus2 Heller 1954 snail
Sinuopea vera2 Ulrich et al. 1931 snail
Cephalopoda
 Ellesmerocerida - Ellesmeroceratidae
Burenoceras phragmoceroides n. sp. Flower 1964
BEG 34832 (type)
Conocerina unguloides n. sp. Flower 1964
BEG 34763 (type)