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.

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''