Publication Search

Trilobites of the Upper Cambrian Ptychaspid biomere, Wilberns Formation, central Texas

Trilobites of the Upper Cambrian Ptychaspid biomere, Wilberns Formation, central Texas

Publication Details

Publication Year
1970
DOI
10.23867/RI0066D
Publication Code
RI0066
Series
Report of Investigations

Geolocation:

Get the Publication

Free download:
Available to Purchase:
$28.00

Abstract/Description:

Trilobites collected during the past 20 years from the Morgan Creek, Point Peak, and San Saba Members of the Wilberns Formation comprise 89 species assigned to 45 genera belonging to zones of the upper Franconian and Trempealeauan Stages of the Upper Cambrian Croixan Series. New zonal names are proposed in the interest of a regionally applicable nomenclature. Although none of the zonal nomenclature is identical to that of the 1944 Cambrian Correlation Chart of Howell�et al.,�the four zones recognized in central Texas are equivalent to the eight highest zones on the Chart.