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Ammonites of prehistoric North America — a marine molluscs group of the prehistoric Cephalopods in North America. Subcategories This category has the following 5 subcategories, out of 5 total.
This list of ammonites is a comprehensive listing of genera that are included in the subclass †Ammonoidea, excluding purely vernacular terms. The list includes genera that are commonly accepted as valid, as well as those that may be invalid or doubtful ( nomina dubia ), or were not formally published ( nomina nuda ), as well as junior ...
Jeletzkytes is an extinct genus of scaphatoid ammonite from the Upper Cretaceous (Maastrichtian) of North America named and described by Riccardi, 1983. In overall form Jeletzkytes closely resembles the genus Scaphites. A number of species have been described in the genus including:
Many ammonite species were filter feeders, so they might have been particularly susceptible to marine faunal turnovers and climatic change. [30] Some reports suggest that a few ammonite species may have persisted into the very early Danian stage of the Paleocene, before going extinct. [45] [46]
Pages in category "Early Cretaceous ammonites of North America" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes .
Pages in category "Late Cretaceous ammonites of North America" The following 28 pages are in this category, out of 28 total. This list may not reflect recent changes. A.
Ammonites of North America (5 C, 86 P) S. Ammonites of South America (1 C, 81 P) This page was last edited on 13 July 2023, at 18:36 (UTC). Text is available under ...
Pages in category "Cretaceous ammonites of North America" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. A.