title: Hamulinidae
text: # Hamulinidae
  
  Hamulinidae is an extinct ammonoid cephalopod family belonging to the order Ammonitida. These cephalopod were fast-moving nektonic carnivores. They lived during the Lower Cretaceous period (Lower Barremian - Upper Barremian).
  
  ## Description
  
  The long main shaft is followed by a hook and a shorter, close, parallel or slightly divergent final shaft. The ammonitic suture is with a subtrifid L. The U is usually reduced or indifferentiated in adults.
  
  ## Genera
  
  * Anahamulina
  * Hamulina
  