Raymondiceratinae

Raymondiceratinae
Temporal range: Upper Devonian
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Goniatitida
Family: †Cheiloceratidae
Subfamily: †
Furnish, 1957
Genera

See text

Raymondiceratinae is a subfamily of Upper Devonian cheiloceratid goniatites in which the sutures have 4 distinct lobes and the growth lines are convex. The subfamily includes three genera.

  • Raymondiceras. named by Schindewolf, 1934 which has a subglubular shell with small closed umbilici and sutures with an incipient lobe in the first lateral saddle. Type genus.
  • Melonites named by Bogoslovskii 1971, which was moved from Cheiloceratidae to Raymondiceratineae by Korn & Klug, 2002.
  • Roinghites named by Korn 2002, which has a thick discoidal shell, with closed umbilici in the adult; fine, convex growth lines and a very shallow, weakly and widely rounded lateral lobe.

References

  • Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
  • Goniat-Raymondiceratinae


This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.