title: Douvilleiceras
text: # Douvilleiceras
  
  Douvilleiceras is a genus of ammonites from the Middle to Late Cretaceous. Its fossils have been found worldwide, in Africa, Asia, Europe, and North and South America.
  
  ## Description
  
  Shells of Douvilleiceras inaequinodum can reach a diameter of about 8–10 cm (3.1–3.9 in).
  
  ## Species
  
  Species within the genus Douvilleiceras include:
  
  * D. clementium
  * D. inaequinodum (Quenstedt, 1849)
  * D. mamillare
  * D. mammillatum (Schlotheim, 1813)
  * D. meyendorffi
  * D. monile (Sowerby, 1836)
  * D. muralense Stoyanow 1949
  * D. offarcinatum
  * D. orbignyi Hyatt, 1903
  * D. scabrosum
  * D. solitae
  * D. spiniferum (Whiteaves, 1876)
  
  ## Distribution
  
  Fossils of Douvilleiceras are found in the Cretaceous of Angola, Brazil, Canada, Colombia (Capotes Formation, Cundinamarca), the Dominican Republic, Egypt, France, Iran, Japan, Madagascar, Mexico, Peru, South Africa, Switzerland, the former USSR, the United Kingdom, Alaska and Texas. D. inaequinodum fossils have been found in Albian strata of France.
  
  ## Gallery
  
  * D. clementium
  * D. mammillatum
  * D. inaequinodum
  * Reconstruction of D. mammillatum with Hoplites dentatus
  