
1) Cretaceous ammonite
Found on
https://www.crosswordclues.com/clue/desmoceras

Desmoceras is a genus of ammonite belonging to the family Desmoceratidae. These cephalopods were fast-moving nektonic carnivores. They lived in the early Cretaceous. Cretaceous of Angola, Antarctica, Australia, Canada, Colombia, Egypt, France, Germany, Italy, Japan, Madagascar (Mahajanga Province), Mexico, Morocco, Nigeria, Peru, Russia, United Ki...
Found on
http://en.wikipedia.org/wiki/Desmoceras
No exact match found.