title: Hedenstroemia
text: # Hedenstroemia
  
  Hedenstroemia is an extinct genus of Early Triassic (Olenekian) cephalopods in the ammonoid order Ceratitida. They were nektonic carnivores.
  
  ## Species
  
  * †Hedenstroemia evoluta Spath, 1934
  * †Hedenstroemia hedenstroemi Keyserling, 1845
  * †Hedenstroemia kossmati Hyatt and Smith 1905
  * †Hedenstroemia mojsisovicsi Diener 1897
  * †Hedenstroemia tscherskii Popov 1939
  * †Hedenstroemia waageni Welter 1922
  
  ## Distribution
  
  Fossils of species within this family have been found in the Early Triassic of Afghanistan, Canada, Oman, Pakistan, Russia and United States.
  
  