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  2. Ammonoidea - Wikipedia

    en.wikipedia.org/wiki/Ammonoidea

    Fossils. Dorling, Kindersley Limited, London, 2002. A Broad Brush History of the Cephalopoda by Dr. Neale Monks, from The Cephalopod Page. Ammonite maturity, pathology and old age By Dr. Neale Monks, from The Cephalopod Page. Essay about the life span of Ammonites. Cretaceous Fossils Taxonomic Index for Order Ammonoitida

  3. Ammolite - Wikipedia

    en.wikipedia.org/wiki/Ammolite

    An iridescent ammonite from Madagascar Map of North America highlighting the shallow inland sea present during the mid-Cretaceous period. Ammolite comes from the fossil shells of the Upper Cretaceous disk-shaped ammonites Placenticeras meeki and Placenticeras intercalare, and (to a lesser degree) the cylindrical baculite, Baculites compressus.

  4. Bearpaw Formation - Wikipedia

    en.wikipedia.org/wiki/Bearpaw_Formation

    The Bearpaw Formation is famous for its well-preserved ammonite fossils. These include Placenticeras meeki , Placenticeras intercalare , Hoploscaphites , and Sphenodiscus , the baculite Baculites compressus and the bivalve Inoceramus , some of which are mined south-central Alberta to produce the organic gemstone ammolite.

  5. Category:Ammonites of North America - Wikipedia

    en.wikipedia.org/wiki/Category:Ammonites_of...

    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.

  6. List of fossil sites - Wikipedia

    en.wikipedia.org/wiki/List_of_fossil_sites

    This list of fossil sites is a worldwide list of localities known well for the presence of fossils.Some entries in this list are notable for a single, unique find, while others are notable for the large number of fossils found there.

  7. List of ammonite genera - Wikipedia

    en.wikipedia.org/wiki/List_of_ammonite_genera

    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 ...

  8. Menefee Formation - Wikipedia

    en.wikipedia.org/wiki/Menefee_Formation

    The Menefee Formation consists of fluvial sandstone, shale, and coal.Based on ammonite biostratigraphy, the age of the Menefee Formation can be constrained to 84.2-79 million years (), based on the presence of Baculites perplexus in the overlying Cliff House Sandstone, and ammonites from the late Santonian in the underlying Point Lookout Sandstone.

  9. Placenticeras - Wikipedia

    en.wikipedia.org/wiki/Placenticeras

    Arkell et al., 1957, Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L. Geological Soc. of America, Univ of Kansas Press. R.C. Moore, (Ed) W. A. Cobban and Hook, S. C. 1983 Mid-Cretaceous (Turonian) ammonite fauna from Fence Lake area of west-central New Mexico.