1) Mississippian ammonite
Found on
https://www.crosswordclues.com/clue/pronorites
Pronorites is a prolecanitid genus from the middle and upper Carboniferous, upper Mississippian and Pennsylvanian. Distribution is wide spread. Pronorites, as for the Pronoritidae, produced discoidal shells with no prominent sculpture, in which the ventral lobe of the suture has three prongs. In Pronorites the prongs of the 1st lateral lobe are si...
Found on
http://en.wikipedia.org/wiki/Pronorites
No exact match found.
