Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas

Calcareous concretions 12-18 m below the top of the Upper Cretaceous Bergstrom Formation in Travis County, Texas, contain abundant ammonites. Menuites stephensoni YOUNG, 1963, Manambolites ricensis YOUNG, 1963, and Trachyscaphites pulcherrimus (ROEMER 1841) have been described previously but are min...

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Détails bibliographiques
Auteurs principaux: Kennedy, W, Cobban, W
Format: Journal article
Langue:English
Publié: 1999
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author Kennedy, W
Cobban, W
author_facet Kennedy, W
Cobban, W
author_sort Kennedy, W
collection OXFORD
description Calcareous concretions 12-18 m below the top of the Upper Cretaceous Bergstrom Formation in Travis County, Texas, contain abundant ammonites. Menuites stephensoni YOUNG, 1963, Manambolites ricensis YOUNG, 1963, and Trachyscaphites pulcherrimus (ROEMER 1841) have been described previously but are minor elements of the fauna, which is characterized, in addition, by abundant Didymoceras binodosum (KENNEDY and COBBAN 1993a) and Spiroxybeloceras kimbroense gen. and sp. n., with rarer Menuites sp., Placenticeras sp., and Baculites texanus sp. n. The fauna correlates with the Baculites scotti zone (Campanian) in the U.S. Western Interior and part of the Bostrychoceras polyplocum zone in northwestern Europe.
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spelling oxford-uuid:3ea18341-4cff-47c9-974a-722aaf5d13132022-03-26T14:26:41ZCampanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central TexasJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3ea18341-4cff-47c9-974a-722aaf5d1313EnglishSymplectic Elements at Oxford1999Kennedy, WCobban, WCalcareous concretions 12-18 m below the top of the Upper Cretaceous Bergstrom Formation in Travis County, Texas, contain abundant ammonites. Menuites stephensoni YOUNG, 1963, Manambolites ricensis YOUNG, 1963, and Trachyscaphites pulcherrimus (ROEMER 1841) have been described previously but are minor elements of the fauna, which is characterized, in addition, by abundant Didymoceras binodosum (KENNEDY and COBBAN 1993a) and Spiroxybeloceras kimbroense gen. and sp. n., with rarer Menuites sp., Placenticeras sp., and Baculites texanus sp. n. The fauna correlates with the Baculites scotti zone (Campanian) in the U.S. Western Interior and part of the Bostrychoceras polyplocum zone in northwestern Europe.
spellingShingle Kennedy, W
Cobban, W
Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title_full Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title_fullStr Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title_full_unstemmed Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title_short Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
title_sort campanian late cretaceous ammonites from the bergstrom formation in central texas
work_keys_str_mv AT kennedyw campanianlatecretaceousammonitesfromthebergstromformationincentraltexas
AT cobbanw campanianlatecretaceousammonitesfromthebergstromformationincentraltexas