THE KARROO SYSTEM 219 



the footprints of Dinosaurs have been found near 

 Jamestown and near Morija in Basutoland. 



The fish Semionotus capensis (S. -Wood ward), from near 

 Ficksburg in the Orange Eiver Colony, seems to occur 

 in the Cave sandstone ; and probably the same genus 

 has been found at Masitisi in Southern Basutoland. 



The Cave sandstone gives rise to very remarkable 

 features on the slopes of the mountains and on the tops 

 of spurs projecting from the main ridges. It tends to 

 weather into huge pillars and irregularly shaped masses 

 often with the lower portion hollowed out to form a 

 shallow cave, a characteristic that gave the rock its 

 name. Such rock shelters were frequented by some 

 primitive people, whose former presence is indicated by 

 agate chips, fragments of ostrich egg-shells, and coarse 

 pottery, and especially by more or less realistic paintings 

 of men and animals done in red, yellow and black colours 

 upon the pale surface of the rock. 



Above the village of Elliot the hard yellow sandstone 

 forms buttresses and pillars over 300 feet high, while in 

 many places along the Drakensberg, and again in 

 Herschel and Basutoland, it forms yellow cliffs and 

 precipices capped by dark-coloured basaltic lavas. 

 There is no rock in the country that produces such 

 peculiar features as the Cave sandstone where typically 

 developed (see Plate XIV.). 



The Drakensberg or Volcanic Beds. 1 

 Before the close of the period represented by the 

 Stormberg sedimentary rocks volcanic activity com- 



1 G. C., vii., p. 37 ; viii., p. 190 ; ix., p. 102 ; x., p. 130. 



