Pan 11 Cnspiteathis tricanaliculata. — Megateuthia Aolensis. 
111 
1888 Belemnites tricanaliculatus v. Guembel, Geol. v. fiayem 
p. 730, f. 7. 
1888 Belemnites quadricanaliculatus v. Gnembel, ibidem p. 730, f. 8. 
1896 Belemnites tricanaliculatus Koken, Leitfoss. p. 613. 
1896 Belemnites quadricanaliculatus Koken, ibidem p. 611. 
1912 Belemnites tricanaliculatus Wemer, Belemniten p. 132. 
S.-Deutschland,Frankreich, 
England, Portugal. 
Lias Z — Dogger a. 
Caspitenthis tricanaliculata var. obsoleta. 
1865 — 71 Belemnites quadricanaliculatus -wai. obsoletus Phillipa, 
Belemnitidae p. 89, f. 85. 
England. Ob. Lias. 
Cnspitcnthis tripartita sulcata Qaenstedt sp. 
1846 — 49 Belemnites tripartitus swlcafus Quenstedt, Ceph. p. 419, 
t. XXVI, f. 16, 22—24. 
1902 Belemnites persulcatus Janensch, Jurensissch. p. 116, t. XI, 
f. 2, 2d. 
1912 Belemnites tripartitus sulcatus Wemer, Belemniten p. 131, 
t. XI, f. 8; t. XII, f. 1. 
S.-Deutflchland. Lias Z. 
ttg) Jiingere Formen Stolley 
(1919, Systematik p. 38). 
7. Gen.: Megateuthis Bayle & Zeiller 
(1878, Atlas t. XXV). emend. Stolley (1919, Systematik p. 36). 
= Belemnites maximus Giebel (1851, Vorwelt p. 82). 
= trisulcati pars Wemer (1912, Belemniten p. 133). 
= gigantei Wemer (1912, ibidem p. 139). 
= Megabelus pars Pavlow (1913, Cepb. cret. inf. p. 13). 
= Infradepressi pars Pavlow (1913, ibidem p. 13). 
= Mucroteuthis Abel (1916, Palaeobiologie p. 140). 
Dorsolateralfurcben stets, Ventrolateralfurcben meist vorhanden. Bostrum 
vor allem am Hinterende meist stark komprimiert. Querschnitt oval. 
Riesenformen. 
Typus: Megateuthis gigantea crassa Wemer sp. 
Megateuthis Aalensis Yoltz sp. 
?1758 Maximum belemnites Bayer, Oryctographia II, p. 17, 1. 1, f. 2. 
?1769 Belemnites Walch, Naturgescb. II, p. 270, t. I, f. 2 — 3. 
?1771 Belemnites Walch, Naturgescb. III, p. 166, t. IV f, f. 3 — 5. 
?1808 Acamas de Montford, Conchyliologie. 
?1811 Belemnites sp. Parkinson, Organic remains p. 128, t. VIII, f. 8. 
?1824 Belemnites multif orata de Blainviile, Belemnites I, p. 193. 
1824 Belemnites giganteus Stahl, Versteinerungen p. 29. 
1830 Belemnites Aalensis Voltz, Beobacbtungen p. 415. 
