THE FOSSIL COEALS AND 



LAMBLLIBEAIfCHIATA. 



Corbula Harpa. 

 Vulsella legumen. 

 Spondylus Eoualti. 



Ostrea Plemingi. 

 vesicularis. 



Beachiopoda. 



Terebratula, c/. subrotunda. 



ECHINODBEMATA. 



Schizaster, sp. 

 Hemiaster digonus. 

 Enrbodia Morrisi. 

 Prenaster, sp. 

 Toxobrissus, sp. 

 Conoclypeus, sp. 



Troehocyatbus Vandenbeckei. 

 Cyclobtes Vicaryi. 



Operculina canalifera. 

 Nummiilites spira. 



Anthozoa. 



rOBAMmiFEEA. 



Ecbinolampas, cf. subsimilis. 

 Temnopleums Valenciennesi. 

 Salenia, 2 sp. 

 Pbymosoma, sp. 

 Porocidaris, sp. (spines). 

 Cidaris Halaensis. 



Montlivaltia Jaequemonti. 



Nummulites irregularis. 

 Leymeriei. 



" In the above list the majority of forms, such as the Foraminifera, the majority of 

 the Echinodermata and Gasteropoda, are Lower Tertiary ; but still there is a very distinct 

 admixture of species with Cretaceous affinities, such as the Nautili, all of which are 

 connected rather with Cretaceous than with Tertiary types, the Terehratula, which 

 cannot be distinguished from one of, the commonest Upper Mesozoic species, and forms 

 of Salenia, Cyclolites, &c. Corlula Harpa is the only form hitherto recognized that is 

 also found in the Upper Cretaceous olive shales, but a variety of the same shell is also 

 found in the Nari beds. 



" Khirthar Qrowp. — Although this group, named from the great frontier range of 

 hills already noticed, is, when the underlying shales and sandstones are excluded, 

 inferior in total thickness to several other subdivisions of the Tejrtiary series in Sind, it 

 comprises by far the most conspicuous rock, the massive Nummulitic limestone. Of 

 this formation all the higer ranges in Sind consist. It forms the crest of the Khirthar 

 throughout, and all the higher portions of the Laki range, of the Bhit range south- 

 west of Manchhar lake, and of several smaller ridges, and consists of a mass of lime- 

 stone, varying in thickness from a few hundred feet in Lower Sind to about 1000 or 

 1200 at the Gaj river, and probably 2000 or even 3000 farther north. 



" The colour is usually pale, either white or grey, sometimes, but less frequently, 

 dark grey ; the texture varies from hard, close, and homogeneous, breaking with a 

 conchoidal fracture, to soft, coarse, and open. Ordinarily, the Nummulitic limestone is 

 tolerably compact, but not crystalline, and is chiefly composed of Foraminifera, especially 

 Nummulites, whole or fragmentary ; corals, sea-urchins, and mollusks also abound, but 

 the two latter very frequently only weather out as casts. 



