Clarkesvillia

Clarkesvillia
Temporal range: U Ordovician
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Nautiloidea
Order: Discosorida
Family: Westonoceratidae
Genus: Clarkesvillia
Flower, 1946

Clarkesvillia is an Upper Ordovician westonocerid genus the differs from Faberoceras in having a more flattened venter and from the later Glyptodendron in having a more ventrally located siphuncle.

references

see also list of nautiloids