FACHBEGRIFF: Beschreibubng des Glossars der Fachbegriffe.
protocercal fin
Tail fin that is primitively symmetrical, i.e. vertebrae extend to the tip of the tail.
FACHBEGRIFF: Beschreibubng des Glossars der Fachbegriffe.
Tail fin that is primitively symmetrical, i.e. vertebrae extend to the tip of the tail.