36 Notices of Memoirs — Pajjers read at British Association. 



II. — The Classification of the Karroo Beds of South Africa. 

 By Professor R. Broom, M.D., B.Sc. 



AN attempt is made from the study of fossil remains to give 

 a more satisfactory subdivision of the Karroo System than has 

 hitherto been possible. The larger subdivision into the Dwyka, 

 Ecca, Beaufort, and Stormberg Series is retained. 



The Beaufort Beds are divided into series. The lowest is 

 characterised by the presence of Therocephalians and Anomodonts. 

 These lower beds can be again divided into an earlier series, in 

 which occur Fareiosaurus and Titanosuchus, and a later series 

 characterised by the prevalence of Dicynodon and Oudenodon. 



Above the Lower Beaufort Beds occur a Middle series, characterised 

 by the rarity of reptilian remains other than of Lystrosaurus, which 

 is very abundant. 



The Upper Beaufort Beds are characterised by the presence 

 of the Theriodonts. In the earlier subdivision of these upper beds 

 Procoloplion is the most characteristic fossil, and in the upper the 

 Theriodont Trirachodon. 



The Stormberg Beds appear to be divisible into two groups — 

 a lower, the Molteno Beds, and an upper, which includes the Red 

 Beds, the Cave Sandstone, and the Volcanic group. 



The Dwyka and Ecca Series are believed to represent the Lower 

 and Middle Permian of Europe, and the Lower Beaufort Beds the 

 Upper Permian. 



The Middle Beaufort and Upper Beaufort Beds are believed to 

 correspond to the Lower and Upper Trias of Europe. 



The Stormberg Beds are believed to be Lower Jurassic or Rhaetic, 

 and the Upper Stormberg Beds Lower Jurassic. 



III. — The Stormberg For^iation in the Cape Colony. By 



Alex. L. dd Toit, B.A. 

 rijlHE Stormberg Formation is the uppermost division of the Karroo 

 J. System in South Africa, and builds up the whole of Basutoland 

 and the adjoining portions of the Cape Colony, the Orange River 

 Colony, and Natal. In the Cape Colony the tract occupied by this 

 formation is confined to the immediate neighbourhood of the 

 Drakensberg Range, widening out considerably in the south-west 

 over what is known as the Stormberg area. 



The Stormberg series is subdivided as follows in downward 

 succession : — 



(4) Volcanic Beds, 



(3) Cave Sandstone, 



(2) Red Beds, 



(1) Molteno Beds. 

 The strata lie nearly horizontally, or are only inclined at low angles, 

 consequently the lower divisions crop out along the foot of the 

 mountain ranges, while the upper beds form all the higher ground. 

 The Molteno Beds consist of a thickness of 1000-2000 feet of 

 sandstones, with thin, dark shales and mudstones and occasional 



