Diplomoceratidae

Diplomoceratidae is a family of ammonites included in the order Ammonitida. Fossils of species within this genus have been found in the Cretaceous sediments (age range: from 99.7 to 66.043 million years ago). Studies of Diplomoceras suggest that members of this family could reach lifespans of over 200 years.

Genera

 * Chesapeakella Kennedy and Cobban, 1993
 * Diplomoceras Hyatt, 1900
 * Glyptoxoceras Spath, 1925
 * Neancyloceras Spath, 1926
 * Scalarites Wright and Matsumoto, 1954
 * Neoglyptoxoceras Collignon, 1969
 * Phylloptychoceras Spath, 1953
 * Oxybeloceras Hyatt, 1900
 * Polyptychoceras Yabe, 1927
 * Pseudoxybeloceras Wright and Matsumoto, 1954
 * Solenoceras Conrad, 1860