Where: Bandera County, Texas (29.6° N, 99.3° W: paleocoordinates 27.7° N, 57.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Lower Member (Glen Rose Limestone Formation), Early/Lower Albian (112.0 - 109.0 Ma)

• Tracks occur in Corbula Bed

•The Glen Rose formation spans through four ammonite zones with ages between latest Aptian and early Albian. Young 1974 suggested the Kasanskyella spathi ammonite zone is latest aptian, the Hypacanthoplites cragini zone is earliest Albian, the Douvilleiceras mammillatum and Hypacanthoplites comalensis zones are early Albian and may extend into the middle Albian. The Salenia texana Zone and Corbula bed fall within the mammillatum zone. The benthic foraminifera Orbitolina texana also suggests a late aptian - early albian age and is found in basal levels and in the upper member (Stricklin et al. 1971). Scott et al. (2007) estimated that the age of the Glen Rose Formation ranges from 113.3 to 108.0 Ma.

• bed-level stratigraphic resolution

Environment/lithology: bioturbated, dolomitic, argillaceous lime mudstone

Size class: macrofossils

Preservation: mold/impression, trace

Reposited in the TMM

Primary reference: W. S. Adkins. 1933. The Mesozoic systems in Texas. In E. H. Sellards, W. S. Adkins, F. B. Plummer (eds.), The Geology of Texas. Volume I. Stratigraphy. The University of Texas Bulletin 3232:239-518 [M. Carrano/M. Carrano/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 52150: authorized by Matthew Carrano, entered by Kaitlin Maguire on 27.07.2005, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)