Oosterellidae is an extinct ammonoid cephalopod family belonging to the superfamily Perisphinctoidea.

These fast-moving nektonic carnivores lived during the Cretaceous.

[1] [1] Fossils of species within this genus have been found in the Cretaceous sediments of Argentina, Austria, Colombia, Czech Republic, France, Hungary, Italy, Mexico, Morocco, Romania and Slovakia.

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