416 ft. above base (Cambrian of the United States)

Where: McCulloch County, Texas (31.0° N, 99.3° W: paleocoordinates 17.5° S, 95.2° W)

When: Saukia trilobite zone, San Saba Member (Wilberns Formation), Trempealeauan (492.5 - 485.4 Ma)

• bed number is feet above base. Highly variable, has calcitic facies (North) and Dolomitic facies (South)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, medium, dolomitic, nodular, shelly/skeletal, silty, sandy limestone

• Interval 416-430ft: Limestone— fine, very fine, and medium grained and aphanitic; mostly pale yellowish brown; minor 14 splotches of dark yellowish-orange and moderate yellowish brown in a few beds; in part nodular from irregular shale films; a few beds pelleted; glauconite absent; from 427 to 427.5 feet, intraformational conglomerate, pebblelike objects in a few other beds; slightly silty, silt mostly feldspar both detrital and authigenic, some quartz; from 416to 420 feet in line of section, a resistant ledge, laterally thin bedded.

Size class: macrofossils

Primary reference: V. E. Barnes and W. C. Bell. 1977. The Moore Hollow Group of Central Texas. Report of Investigation (88)1-169 [M. Patzkowsky/K. Irizarry/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 216009: authorized by Mark Patzkowsky, entered by Kayla Irizarry on 02.12.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Asaphida - Eurekiidae
"Corbinia apopsis" = Eurekia apopsis
"Corbinia apopsis" = Eurekia apopsis Winston and Nicholls 1967 trilobite
Winston & Nicholls 1967