Pachydiscus

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Cephalopoda
Subclassis: †Ammonoidea
Ordo: Ammonitida
Subordines: Lytoceratina
Superfamilia: Desmocerataceae
Familia: Pachydiscidae
Genus: Pachydiscus
Subgenus: P. (Pachydiscus)

Name

Pachydiscus Zittel 1895

References

* Kennedy, W. J., Landman, N. H., Cobban, W. A., & Johnson, R. O., (2000). "Additions to the Ammonite Fauna of the Upper Cretaceous Navesink Formation of New Jersey" American Museum Novitates 3306(1):1–30