title: Cumingsoceras
text: # Cumingsoceras
  
  Cummingsoceras is a genus of barrandeoceroids within the Tarphycerida, included in the family Uranoceratidae. Its shell is a rapidly expanding gyrocone of about 1.5 narrowly separated whorls.
  
  The surface is faintly cancellated by slight longitudinal lines that cross growth lines which define a deep hyponomic sinus. The siphuncle is small, subcentral, and with recumbent necks.
  
  Cummingsoceras is known from the middle Silurian of Indiana and Illinois.
  
  