文章基本信息

标题：Heteromorph ammonites from the middle Campanian Baculites scotti Zone in the U.S. Western Interior
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作者：William James Kennedy ; Wiiliam A. Cobban ; Glenn R. Scott 等
期刊名称：Acta geologica Polonica
印刷版ISSN：0001-5709
出版年度：2000
卷号：50
期号：2
页码：223-241
语种：English
出版社：Institute of Geology, University of Warsaw
摘要：Heteromorph ammonites are common in the middle Campanian Baculites scotti Zone of the United States Western Interior; the following species are described: Didymoceras binodosum (KENNEDY & COBBAN, 1993a), D. wrighti sp. nov., D. jorgenseni sp. nov., Anaklinoceras incertum sp. nov., Lewyites sulcatus sp. nov., Solenoceras mortoni (MEEK & HAYDEN, 1857), and Spiroxybeloceras kimbroense KENNEDY & COBBAN, 1999. They provide the basis for the subdivision of the scotti Zone into a lower Didymoceras binodosum Subzone, and an upper Didymoceras jorgenseni Subzone.
关键词：Cretaceous;Campanian;U.S. Western Interior;Ammonites;Biostratigraphy