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Diagram of ammonite soft tissue anatomy based on other cephalopods along with a cross section (right). Note that shape and length of tentacles are speculative. Although ammonites do occur in exceptional lagerstatten such as the Solnhofen Limestone, their soft-part record is surprisingly sparse. Beyond a tentative ink sac and possible digestive ...
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 ...
Ammonitida, or true ammonites, are an order of ammonoid cephalopods that lived from the Jurassic through Paleocene time periods, commonly with intricate ammonitic sutures. Ammonitida is divided into four suborders, the Phylloceratina , Lytoceratina , Ancyloceratina , and Ammonitina .
Milcom or Milkom (Ammonite: 𐤌𐤋𐤊𐤌 *Mīlkām; Hebrew: מִלְכֹּם Mīlkōm) was the name of either the national god, or a popular god, of the Ammonites. He is attested in the Hebrew Bible and in archaeological finds from the former territory of Ammon.
Emileia is an extinct genus from a well-known class of fossil cephalopods, the ammonites, that lived during the early part of the Bajocian. [1] Emileiais a large form with fine ribbing that includes may secondaries. It begins as a barrel shaped cadicone, with an eccentric, more or less smooth body chamber. [3]
Ammonites — members of the Ammonoidea subclass of molluscan prehistoric cephalopods. Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large.
Kosmoceras is a moderately evolute ammonite genus from the upper Callovian (Middle Jurassic) of Europe with a simple aperture and irregular ribbing interrupted by an irregular row of lateral tubercles. Strong ventral tubercles are separated by a smooth depression running along the rim.
Arietitidae is a family of true ammonites that make up part of the superfamily Psiloceratoidea, named after the type genus Arietites.They comprise medium-size to large or gigantic genera which in general are strongly ribbed, tuberculate in some, with keeled or grooved and keeled venters, and well differentiated ammonitic sutures.