Dimorphocerataceae

      Dimorphocerataceae
      Temporal range: Late Paleozoic
      Scientific classification
      Kingdom: Animalia
      Phylum: Mollusca
      Class: Cephalopoda
      Subclass: Ammonoidea
      Order: Goniatitida
      Suborder: Goniatitina
      Superfamily: Dimorphocerataceae
      Hyatt 1931
      families

      The Dimorphocerataceae, Dimorphoceratoidea in more recent classifications, is one of seventeen superfamilies included in the ammonoid suborder Goniatitina, a variety of shelled cephalopods that lived during the late Paleozoic.

      The Dimorphocerataceae can be described as Goniatitina with subdiscoidal to lenticular shells that have conspicuous closed umbilici and goniatitic sutures with long prominently bifid ventral lobes and more or less subdivided external lobes.

      References

      • Miller, A.K. et al. Paleozoic Ammonoidea. Treatise on Invertebrate Paleontology. Geological Society of America and University Kansas Press.
      • Dimorphoceratoidea in GONIAT Online 5/30/12
      • The Paleobiology Database 10/01/07


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      Last modified on 1 June 2012, at 12:39