100 
Records of the Geological Survey of India. 
[vol. IV. 
Perisphinctes Pagri, Waagen. 
„ plicatilis, Sow. 
„ virguloides, Waagen. 
leiocymon , Waagen. 
These few species can serve merely by their general character as a guide towards the 
determination of the age of the Kuntkote beds, because the only species of which the 
geological position is well known in Europe, Per. plicatilis, indicates only generally strata 
of lower or middle Oxfordian age. The other forms of Perisphinctes occurring at 
Kuntkote resemble in general character such species as, if found in Europe, would be 
referred to the middle or upper Oxfordian. This and the appearance of the rock leads 
rue to believe that the Kuntkote beds are a little younger than the brown oolite, with which 
they have only a single species, PL fit sum,, in common. A similar rock to that of Kuntkote 
occurs only at a certain distance north from Dhosa, where Aspidoceras ipliicerum, Opp., 
has been found in a dark-red and a slightly sandy ferruginous rock. 
The last locality of importance which has furnished nearly the greatest number of 
specimens of Ammonites, though the number of species is not very large, is the Katrol 
range, the rocks there being represented chiefly by coarse ferruginous sandstones and sandy 
ferruginous concretions, with frequent occurrence of fossil wood. The species found 
there are— 
(7). Ammonites of the course ferruginous sandstone, Patrol range : 
Phy Hover as ptychoicum, Quenst. 
Haploceras cf. tomepkontm, Zitt. 
Oppelia trachynofa, Opp. 
„ Cutchcnsis, Waagen. 
Peltoceras monaewnilms, Waagen. 
Aspidoceras Wynnei, Waagen. 
„ 2 sp. indet. 
Perisphinctes torquatus, Sow. 
„ hathyplocus, Waagen. 
„ Pottingeri, Sow. 
„ euplocus, Waagen. 
,, Katrolensis, Waagen. 
The first three species are European forms, and two of them, Phyll. ptychoicum and 
Hapl. tomepkorum, are very characteristic for the Tithonian formation of the Medi¬ 
terranean Jurassic province, whilst Opp. irachynota occurs in the middle and upper Kim- 
meridge and Tithonian layers of the Mediterranean aud Central European provinces. 
Of the other species, only Pelt, monacanthus and Asp. Wynnei have a decidedly Titho¬ 
nian character, whilst among the Perisphinctes, the absence of the group of Per. poly- 
plocus also indicates very high jurassio beds. It should also ho mentioned that Mr. Fedden 
notes on the label accompanying the specimens of Asp. Wynnei and Hapl. cf. tomephorum— 
“ From the highest beds containing Ammonites 
Recapitulating briefly wiiat I have said regarding a few of the principal localities con¬ 
taining Ammonites, it seems clear (1) that at different places there are strata of a different 
mineralogieal character represented; (2) that these strata contain species of Ammonites 
mostly peculiar to themselves; and (3) that these species indicate distinct geological horizons. 
If we take only those species into consideration which occur in the Kntch, as well as in 
the European Jura, we find that in the golden oolite of Kg era hill there are nine species of the 
zone of St. macrocepTialum ” in the oolite of Dhosa and the equivalent beds there are three 
