1) Triassic ammonite
Found on
https://www.crosswordclues.com/clue/griesbachites
Griesbachites is a Late Triassic ceratitid included in the Haloritidae, with widespread distribution from the Alps through the Himalaya and Timur to British Columbia. The shell of Griesbachites is involute, subglobose to subdiscoidal, ribbed; with sloping sides converging on an arched venter. Like Juvavites except has nodes or clavi on the ventrol...
Found on
http://en.wikipedia.org/wiki/Griesbachites
No exact match found.
