coenosteal
/ˌsɛnəʊˈstiːl/Definitions
1. adjective
Pertaining to or resembling a coenosteum, especially in being a hard or calcified, often brightly colored, exoskeleton or shell.
“The coenosteal structure of the coral reef is an essential habitat for various marine species.”
2. noun
A hard or calcified, often brightly colored, exoskeleton or shell, especially of a coral or related organism.
“The coenosteal plates of the fossilized coral are an important discovery in the field of paleontology.”