74 HOLLAND AND TIPPER : INDIAN GEOLOGICAL TERMINOLOGY. 



Lathi group. — Named by E. D. Oldham (Rec. Geol. Surv. Ind., XIX, 

 157, 1886) from a village (27° 2' ; 71° 33') on the road from 

 Pokran to Jaisalmir. A series of sandstones with silicified wood. 



Lilang limestone.— Named by F. Stoliczka (Mem. Geol. Surv. 

 Ind., V, 30, 1866) from the village of Lilang (32° 9' ; 78° 18') on 

 the Lingti river in Spiti. Regarded as Triassic in age by Sto- 

 liczka. The term was subsequently discarded when the Triassic 

 system in Spiti became studied in sufficient detail to establish a 

 detailed classification of the beds (Hayden : Geology of Spiti, 

 Mem. Geol. Surv. Lid., XXXVI, 87, 1904). 



Lilang system. — Defined by H. H. Hayden (Geog. and Geol. of the 

 Him., Part IV, 235, 1908) as the system of sediments in Spiti and 

 Kumaon ranging from the base of the Otoceras zone, that is 

 above the Productus shales, to and including the Upper Triassic 

 beds of juvavic age. The system is over 3,000 feet thick in Spiti 

 and rather less in Kumaon. The svsteni is zoned as below : — 



Quartzite series with Spirigera maniensis 



Monotis shales with M. salinaria 



Coral limestone with Spiriferina griesbaclri 





Juvavic. 



Juvavites beds with J. angulatus 

 Tropites beds with T. cf. subbullatus 

 Grey shales with Joannites cymbiformis 

 Halobia beds with H. cf. comata 

 Daonella limestone with D. indica 

 Daonella shales with D. lummeli 



Carnic. 



Ladinic. 



Muschelkalk limestone with Ptychites rugifer 



Muschelkalk. 



Hedentrcemia beds with H. mojsisovicsi . 

 Meekoceras zone with M. varaha 



Lower Trias. 



Ophiceras zone with O. saJctintala . 

 Otoeeras zone with O. woodwardi 



Pemio-Trias passage. 



Peodtjctus shales. 



Permian 



LillgagOOdium sandstones.— Name introduced by W. King (Rec. 

 Geol. Surv. Ind., Vol. X, 56, 1877) for an upper sub-division of the 

 Kamthis in Hyderabad and corresponding to the Dummapett 

 sandstones of the Godavari district. The term was discarded. 



Lipak series.— Applied by H. H. Hayden (Geog. and Geol. of the 

 Him., Part IV, 233, 1908) to the lower of the two divisions of 



