1) Mississippian ammonite
Found on
https://www.crosswordclues.com/clue/beyrichoceras
Beyrichoceras is a genus belonging to the Goniatitid family, Maxigoniatitidae that lived during the Mississippian Period (Early Carboniferous) Beyrichoceras can be recognized by its small, thickly discoidal shell with small umbilicus, deep dorsal impression, arched flanks and rounded venter The ventral lobe of the suture is bifurcated, wide at its...
Found on
http://en.wikipedia.org/wiki/Beyrichoceras
No exact match found.
