Tropaeum

Tropaeum 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. For the city in Scythia Minor, see Civitas Tropaensium.

Tropaeum
Temporal range: Early Cretaceous
Tropaeum imperator
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Suborder: †Ancyloceratina
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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