Desmocerataceae

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Desmocerataceae
Temporal range: Valanginian - Maastrichtian
Gasteropods - Ammonites - Desmoceras sp..JPG
Desmoceras sp. – Lower cretaceous (Albian) from Mahajanga, Madagascar
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Desmocerataceae
Zittel, 1895
Families

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.[1] [2] Regarded as monophyletic, the Desmocerataceae are derived from the Phylloceratidae, spltting off in the Early Cretaceous (Valanginian) and persisting to the end of the Maastrichtian.

References[edit]

  1. ^ Desmoceratoidea at Paleobiology database, retrieved on July 8, 2012.
  2. ^ Wright, C. W. with Callomon, J.H. and Howarth, M.K. (1996), Mollusca 4 Revised , Cretaceous Ammonoidea, vol. 4, in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler et el. eds.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, 67-111.