C'KPIIALOVOD HORIZONS : linr.VLA VAN riMAS. 143 
A correlation of the Triassic cephalopod horizons of the Himalayas 
and of the Eastei-n Alps is illustrated in the following table : — 
Eastern Alps. 
Himalayas. 
Rhoctic • 
Horizon of Ghopisioccvus J^uvshit 
Noric stage , 
Hiirizon of Sirenites Argonaidm. 
,, ,, Pinacoceras Metter- 
nichii. 
,, ,, Cyrtopleurites bicre- 
natus. 
„ ,, Cladiscites ruber. 
Horizon of ITalorites procyon. 
}t ,> Proclydonatitiliis 
Griesbachi. 
Cai nic stage . 
Horizon of Tropitvs subhullatus. 
„ „ T. Aon 
Horizon of Tropites subhullatus. 
„ „ Hypocladiscites sub- 
araiu.i. 
„ Joan7utes cymhi- 
formis. 
„ „ Joannites thana- 
mensis (?). 
ch elans. 
., ,, Dtnariies avisianus, 
„ „ Prot r a c h y c cr a s 
Curionii. 
Horizon of Protrachyceras Ar- 
chelaus. 
Muschelkalk . 
Horizon of Ceratites trinodosus. 
jj ji 0 C/ ttttc to Ul- ilUHUiS lit . 
Horizon of Ceratites Thuillieri. 
„ „Keyserlingites 
Dieneri. 
„ ,, Sihirites Prahlada. 
Lower Trias . 
Horizon of Tirolites cassianus 
Horizon of Sibirites spiniger. 
,, „ Hedenstrcemia Moj- 
sisovicsi 
„ „ Meekoceras Marh- 
liami. 
„ „ Otoceras Woodwardi. 
Permian 
Horizon of Paralecavites sex- 
ten sis. 
Horizon of Cyclolobus insignis. 
{ 344 I 
