• Source: Desmoceratoidea

Desmoceratoidea, formerly Desmocerataceae, is a superfamily of Cretaceous ammonites, generally with round or oval-whorled shells that are mostly smooth or weakly ribbed and rarely tuberculate, but commonly with constrictions. Regarded as monophyletic, the Desmocerataceae are derived from the Phylloceratidae, splitting off in the Early Cretaceous (Valanginian) and persisting to the end of the Maastrichtian.




References






External links


Wright, Claud William; with John Hannes Callomon and M.K. Howarth (1996). Roger L. Kaesler (ed.). Mollusca 4 Revised, Cretaceous Ammonoidea in Treatise on Invertebrate Paleontology Part L. Boulder, Colorado and Lawrence, Kansas: The Geological Society of America & University of Kansas Press. p. 67.{{cite book}}: CS1 maint: multiple names: authors list (link)

Kata Kunci Pencarian:

• Desmoceratoidea
• Ammonitina
• List of biostratigraphic zones of Japan
• Pachydiscidae
• Brancoceratidae
• Barremitinae
• Phylloceratina
• Desmoceratidae
• Silesitidae
• Perisphinctoidea