Pro-ostracum, muscular mantle and Conotheca in the middle Jurassic Belemnite Megateuthis
- Wien Geologische Bundesanstalt 2002
- pp. 321-339 ilus., láms.
- Austria. Abhandlungen der Geologischen Bundesanstalt .
BELEMNITES CONOTHECA JURASICO MEDIO MANTO PRO-OSTRACUM ULTRAESTRUCTURA