CONTINENTAL DISPLACEMENT SCHUCHERT 



261 



Tablk I. 



2. 



-Geological relations between African Cape Mountains and Argentinian 

 Sierras — Continued 



Middle Permian" (Ecca), sh., 

 ss., 2,000 to 6,000 feet. Typical 

 Glossopteris flora and rare ap- 

 pearance of "naigrant" reptiles, 

 Archaeosuch us, Eccasaurus. 



3. Upper Permian (Lower Beau- 



fort), ss., sh., 4,000 to 6,000 

 feet. Late Glossopteris flora, 

 and greatest abundance of 

 reptiles (70 species). Pareia- 

 saurus, Titanosuchus, Dicyno- 

 don. Propappus, Therocephalia, 

 Lycosaurus, Endothiodon. 



4. Lower Triassic (Middle Beau- 



fort), 1,000 feet. Zone of 

 Lystrosaurus and ProcolopJion. 



5. Middle Triassic (Upper Beau- 



fort) , 2,000 feet. Zone of Cyno- 

 gnathus. Erythrosuchus related 

 to Scaphonyx. 



6. Middle Triassic (Molteno), 2,000 



feet. 



7. Upper Triassic (Stormberg) red 



beds, 1,600 feet, with dino- 

 saurs; Cave ss., 800 feet, with 

 dinosaurs. 



8. Upper Triassic (Drakensberg) 



volcanics and dolerite intru- 

 sions, 4,000 feet north of Cape 

 Mountains. 



Cape Mountains orogeny. Thrusting to 

 north. Appears to have begun in 

 late Beaufort (late Triassic) and con- 

 tinued periodically into Lower Cre- 

 taceous, resulting in high Cape 

 Mountains. 



Lower Cretaceous (Uiteuhage-Enon) 

 marine overlap in southeast. 



Unconformity. 



Upper Cretaceous (Pondoland) ma- 

 rine series, limited. 



Rifting and faulting in late Cenozoic 

 time. 



Middle Permian with Glossopteris flora; 



no reptiles. 

 Orogeny in Sierras and pre-Cordilleras. 



Absent. [These Permian-Triassic in- 

 terrelations between South Africa and 

 South America are more fully dis- 

 cussed by Schuchert in a paper on 

 the age of the Permian tillites, 

 referred to in the footnote on p. 262 

 of this paper.] 



Absent. 



Absent, 



Absent. 



Red beds, 2,900 feet, with Scaphonyx 

 and Erythrosuchus. 



Plateau lavas in Brazil, 2,000 feet. 

 Age uncertain, probably late Triassic. 



Absent. 



In pre-Cordilleras of northwest Ar- 

 gentina. 



Folding of Andes. 



High epeirogenic elevation of Andes, 



24034—29- 



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