OriABJIEHIB. 



CTP. 



Upe/i;iiCwTOBie iii 



IIoitOTpflAT^: JBelemnoidea. 



CeM. Belemnitidae 1 



Belemuites (Nanuobelus) brevis (Blv.) (Hebert) ■ 8 



Belemuites (Nannobelus) (cf.) janus Duraortier 12 



Belemnites (Megabelus) gigantoides u. sp • • • • 13 



Beleranites (Megabelus) Tolli n. sp 14 



Belemuites (Piesetrobeliis) obeliscoides Phil 15 



Belemnites (Piesetrobelus) cf. porrectus Phil 15 



Belemnites (Piesetrobelus) magnificus d'Orb 16 



Belemnites (Piesetrobelus) anabarensis n. sp 16 



IIojtOTpflAt: ^^ninaoiioidLea. 



PoflBi : Polyptychites, EuryptycMtes, Tollia, Simbirskites (?), Temnopty chites . . 18 



Polyptychitcs diptychoides n. sp 18 



Polyptychites variisculptus n. sp 19 



Polyptychites cf. Rinuei v. Koenen 21 



Polyptychites cf. ovatus v. Koenen 22 



Polyptychites cf. polyptychus Keys 23 



Polyptychites oeiliughusanus Weerth? 23 



Polyptychites sp. cf. ramiilicosta Pavl 24 



Polyptychites ramulicosta Pavl. et Lampl 24 



Polyptychites densicosta n. sp 26 



Polyptychites conferticosta n. sp 27 



Polyptychites anabarensis n. sp. . ^ 27 



flo/iMnTMXMTbi rpynnbi Polyptychites Stubendorffi Schmidt 28 



Polyptychites Stubendorffi Schmidt 29 



Polyptychites Middendorffi n. sp 31 



Polyptychites Tscherskii n. sp 33 



Polyptychites Tschekanovskii n. sp 34 



