Palaeontogr. B.1.XXIVNF1V. 



Taf. XXXVI. 

 1. 



1. Turrilites tridens, Schlüt. 2-5. Turril. varians, Sehlüt. 6. 7. Turril. plicatus, d'Orb. 

 8-10. Turril. undosus, Schlüt. 11-15. Turril. Scheuchzerianus, Bosc. 



