Preferred Label : dorsal fin ceratotrichial spine (elasmobranchs);
Uberon definition : A small to large enameloid-covered, dentine-cored spine located on the anterior margins
of one or both of the dorsal fins, found on bullhead sharks (Heterodontiformes), many
dogfish sharks, fossil (but not living) batoids, chimaeroids, but lost entirely or
buried in the fin bases of other shark-like fishes. [def from Compagno, Sharks of
the World];
Origin ID : 4300101;
part of
A small to large enameloid-covered, dentine-cored spine located on the anterior margins
of one or both of the dorsal fins, found on bullhead sharks (Heterodontiformes), many
dogfish sharks, fossil (but not living) batoids, chimaeroids, but lost entirely or
buried in the fin bases of other shark-like fishes. [def from Compagno, Sharks of
the World]
