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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 ...
They are often called ammonites, which is most frequently used for members of the order Ammonitida, the only remaining group of ammonoids from the Jurassic up until their extinction. [2] Ammonoids exhibited considerable diversity over their evolutionary history, with over 10,000 species having been described. [3]
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 .
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 .
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 .
Cretaceous ammonites of North America (2 C, 7 P) E. Early Cretaceous ammonites (2 C, 16 P) L. Late Cretaceous ammonites (2 C, 11 P) Pages in category "Cretaceous ...
Carboniferous ammonites of Europe (2 P) Carboniferous ammonites of North America (5 P) M. Mississippian ammonites (14 P) P. Pennsylvanian ammonites (8 P)