1) Devonian animal
Found on
https://www.crosswordclues.com/clue/chaetosalpinx
Chaetosalpinx is an ichnogenus of bioclaustrations (a type of trace fossil). Chaetosalpinx includes straight to sinous cavities that are parallel to the host’s axis of growth. The cavity is circular to oval in cross-section and it lacks a wall lining or floor-like tabulae (Tapanila 2005). They are common in tabulate and rugose corals from Late O...
Found on
http://en.wikipedia.org/wiki/Chaetosalpinx
No exact match found.
