Tropaeum

Tropaeum ("Trophy") is an extinct genus of ammonites found throughout the oceans of the world during the Early Cretaceous. As with many other members of the family Ancyloceratidae, there was a trend among species within this genus to uncoil somewhat, in a very similar manner to the genus Lytoceras. The largest species, T. imperator of Australia, had a shell a little over one meter in diameter.

For the ancient Greek or Roman victory monument, see Tropaion.

Tropaeum
Temporal range: Early Cretaceous
Tropaeum imperator
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Family:
Ancyloceratidae
Genus:
Tropaeum

Sowerby, 1837
Species
  • T. imperator
  • T. undatum
  • T. bowerbanki
  • T. rasgradensis
  • T. australis
  • T. loegteri

The name "Tropaeum" was applied by paleontologist James De Carle Sowerby, in 1837.

References
    • photograph of the holotype of T. imperator


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