U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Six Flags Limestone Member*
  • Modifications:
    • Biostratigraphic dating
  • AAPG geologic province:
    • Ouachita folded belt
Publication:

Cobban, W.A., 1988, Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the Western Interior of the United States: U.S. Geological Survey Professional Paper, 1473, 51 p.


Summary:

Is member of Woodbine Formation following Norton (1965). Is tentatively assigned a late middle or early late Cenomanian (Late Cretaceous) age based on probable occurrence of ammonite EUCALYCOCERAS TEMPLETONENSE from J. P. Conlin collection from Dallas Co, TX in Ouachita tectonic belt province. Taxon ranges through the latest middle Cenomanian PLEISIACANTHOCERAS WYOMINGENSE zone and the earliest late Cenomanian DUNVEGANOCERAS PONDI zone.

Source: GNU records (USGS DDS-6; Denver GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:08:16 PM MDT