94 
DIENER : TRIAS OF THE HIMALAYAS. 
Paracladiscites, Megaphyllites , Proarcestes, Clydonautilus, which could not 
be determined specifically. 
The beds with Halobia comata are overlaid by the nodular limestone 
with Prochjdonautilus Griesbachi Mojs., which contains a fauna of 
indubitably noric age. 
The entire thickness of the carnic stage in Painkhanda barely exceeds 
800 feet, that is to say only half of the thickness of this stage in Spiti. 
Nor can an equal number of stratigraphical horizons be distinguished 
in the carnic series of the two districts. 
c. The Noric and Rhcetic stages in Spiti and Painkhanda. 
In the section of Lilang a series of brown-weathering limestones 
alternating with shales and sandstones, follows conformably above the 
dolomitic limestone with Lima cf. austriaca Bittii. and Dielasma julicum 
Bittn. Its thickness amounts to 500 feet. 
In the upper division of this series Cephalopoda are common, especi- 
ally ammonites of the genus Juvavites Mojs. The name " Juvavites 
beds " proposed by A. v. Krafft is indeed very appropriate for this rock 
group. 
Juvavites angulatus Dien. is the chief leading fossil. It is a 
representative of the section of continui, but does not show a close affi- 
nity to any European or American species of this genus. Tlie fauna of 
the Juvavites beds consists of the following forms : — 
Atractites sp. ind. cf. alveolaris Quenst. 
Paranautilus arcestiformis Dien. 
Pleuronautilus sp. ind. aff. Kossmati Dien. 
,, cf. ibeticus Mojs. 
Indonautilus cf. Kraffti Mojs. 
Dittmarites lilliifonnis Dien. 
,, cf. trailliformis Dien. 
Clionites sp. ind. cf. Hughesii Mojs. 
Metacarnites Footei Dien. 
,, Hendersoni Dien. 
Pinacoceras sp. ind. ex. aff. parma Moj?. 
Tihetites cf. RyaUi Mojs. 
Anatibetites Kelviniformis Dien. 
( 295 ) 
