IN SOUTHERN INDIA. 



289 



mollusca and more especially of the carnivorous types. The 

 great family of the cephalopoda was on the wane, only 

 a single species, Nautilus Danicus, specially characteristic of 

 the uppermost cretaceous beds in Holland, North- Western 

 Germany and Denmark, remained in the uppermost beds, 

 while many very characteristic Mesozoic genera had dis- 

 appeared, and one only (Nerincea) survived. 



Of the invertebrate organisms no less than 16*36 per cent, 

 were shown by Dr. Stoliczka to occur in the cretaceous rocks 

 of Europe. The difference between the faunas of the three 

 groups is very great, the Utatur group having only 13 

 species out of 294, which recur in the overlying Trichi- 

 nopoly group. The Trichinopoly group in its turn is rather 

 less ditferent from the younger Arialur group, as out of 

 186 species in the former 38 survived into the latter. Of 

 the 365 species occurring in the Arialur group, 1 1 had occurred 

 in the Utatur beds, but only 8 species ranged through the whole 

 of the cretaceous series. Of these eight species, (1) Nautilus 

 Nuxleyanus, (2) Ammonites planulatus y (3) A. Menu, (4) 

 Ampullina bulbiformis, (5) Oyrodes pansm, (6) Solariella 

 radiatula, (7) Vola quinquecostata, and (8) Lucina (JJklyrtea) 

 arcotina, four, Nos. 2, 4, 6 and 7, are European forms. 



The correlation of the three groups of the South Indian 

 cretaceous rocks with their representatives in Europe is well 

 shown in a table given by Dr. Stoliczka in the introduction 

 to series viii of the Palwontologia Indica : — 



South India. 



England. 



France. 



Germany. 



f Zone of Nautilus danicus and 

 Ammonites Ootacodensis, 

 ARIALUR J Ostrea pectinata and 0. angu- 

 GROUP. i lata, Gryphoea vesicularis, 



| Inoceramus Cripsii, Crania 



L ignabergensis. 

 _ rf(m fZone of Ammonites peramplus, 

 tvtT^tjtJtv J Pholadomya caudata, Modi- 

 riwrvTTT> 1 ola typica, Oslria dihiviana, 

 ixftvvr. Ehynconella compressa. 



fZone of Ammonites rostratus 

 TTTiArnTTT? and rotomagensis, Inocera- 

 n wrvTro \ mus labiatus, Exogyra subor- 

 ItKUU±'. j bicniata {Grypluea colnmba) , 



L and Terebratula depressa. 



Upper 

 chalk. 



Lower 

 chalk. 



Chalk 

 marl and 

 upper 

 green 

 sand. 



Senonian. 



Tiu-onian. 



Cenomani- 

 an or 

 Tourtia. 



Ober Quader. 



Mittel 

 Quader. 



U nter 



Qunder, Un- 

 terer Quader 

 Sanclsteiu 

 and Unterer 

 Planer. 



