12 
Records of the Geological Survey of India. 
[vol. IX. 
At the base of the Nummulitic limestone, fossiliferous beds occur in parts of the 
province. These beds it appears best for the present to associate with the Khirthar group, 
although they may ultimately prove worthy of distinction, or it may, as above suggested, 
prove necessary to class them with the Infra-nummulitic beds of Ranikot. 
The most northern locality at which the basement beds of the Nummulitic group appear 
to be exposed in Sind is on the west side of the hills south of Rohri. Here beds of pale- 
green gypseous clays are seen, interstratified with a few bands of impure dark limestone and 
calcareous shale. These beds are fossiliferous, but the only species that has been recognised 
in them is Natica longispira, which appears to have a wide range in time, being found, accord¬ 
ing to D’Arehiac, in the upper eocene beds with Nummulites garansensis. Species of 
lucina, Cardium, Leda, Pinna, Cerithium, and Rostellaria also occur. 
Similar green clay was observed by Mr. Fedden near Hyderabad, birt no good section 
was found, nor were any fossils detected in it. In neither case was the base of the green 
clays seen, so that it is impossible to be certain whether they are not a band locally inter¬ 
calated in the limestones. The latter appears most probable at Hyderabad. 
At the base of the thick Nummulitic limestone in the Yero plain north-west of Kotri, 
and in similar beds on the same horizon near Jhirk (Jerruck) and Tatta, some very fossili¬ 
ferous yellowish-brown limestone is found, in which the following fossils have been 
identified :—* 
Foraminifera. 
Operculina canalifera (very abundant). Nummulites Leymeriei. 
OP Tattaensis, Carter. N. irregularis. 
Fchinodermata, 
Echinolampas P sp. (one very near E. 
subsimilis). 
Eurhodia Morrisi. 
Hemiaster digonus, 
PracMopoda. 
Terebratula sp. 
Famellibranchiata. 
Spiondylus Rouaulti. 
Gasteropoda. 
Terebellum plicatum. 
T. subbelemnitoideum. 
Rostellaria angistoma. 
R. Prestwichi. 
E. fusoides. 
Cephalopoda. 
Nautilus subfleuriausianus. N. Labechei. 
N. Deluci. N. Eorbesi. 
Cardita Beaumonti. 
Turritella angulata. 
T. assimilis. 
Nerita Sohmedeliana. 
Natica longispira. 
Terebellum distortum. 
Cidaris Halaensis ? 
Porocidaris (spines). 
Temnopleurus Yalenciennesi. 
* In this and other lists D’Arehiac and Haime’s names are used. Their genera often differ from those em¬ 
ployed by more modem writers, and their specific determinations may, in many cases, require revision; some of 
their species, for instance, being probably identical with well known living forms. 
The Molluscs are only mentioned, as a rule, when they have been determined specifically. All the Eehino- 
dermata found are included in the lists, whether they have been identified specifically or not. 
