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

Lytocrioceras is an ancyloceratine ammonite from the Lower Cretaceous with a shell that resembles a safety pin. The shell begins as a loosely wound spiral, followed by a straight shaft which makes a U-turn to go back is somewhat the opposite direction, ending in a jog, offset from the original coil. Lytocrioceras was originally included in the Anc...
Found on
http://en.wikipedia.org/wiki/Lytocrioceras
No exact match found.