80 PHYSIOGRAPHY. 



-1. DEVONIAN AND OLD RED SANDSTONE (10,000). Fish, Insects. 



| f Lower. Cryptogams. -g g fLower. Ccphalacpis, 



"S J Middle. GonidtUes, Bryozoa. p3 j Ferns, Lycopodi. 

 | ] Upper. 3 % \ Upper. Ganoid Fish, 



p) [These beds are probably marine. O [Dicotyledonous icood. 



5. CARBONIFEROUS SERIES. 



Tcr^atula. 



. 



Millstone grit (5,000). 



Coal measures with ( (12, 000) Ferns, Lcpidodendron, Cypris, 



Gannister, Shale, < Calamities, Lycopodiacece, Lalyrin- 



&c. (^ thodonts. 



6. PERMIAN OR DYAS (3,500) last Lcpidodendra, Calamarics, and 

 Sigillarioids. Amphibians abundant. 



IVIagnesian Limestone, &c. ( Proicrosaurus, Branchio- 



Red conglomerates and sandstones, j saurus, Lepidoiosaiinis. 



SECONDARY OR MESOZOTC ROCKS. 



1. TRIASSIC (5,200). Ferns, Equiscta, Conifers, Cycads, Am- 

 monites, Labyrinthodonts. 



, Bnnter. 



\ Muschelkalk. 



< -IT- Rock-salt, Microlestes antiquus the first mammal, 



I Ken P er - a Crocodile, a Land-lizard. 



1 Rhsetic. 



2. JURASSIC OR OOLITIC, Reptiles abundant, Coral, Cycads 

 abundant, Conifers. 



( Lower Lias. J (1,500) Ammonites, Bclcmnitcs, Nautili. 

 < Middle I^ias. / Ichthyosaurus, Plesiosaurus, Megalosaurus, 

 [ Upper Lias. ) Allantosaurus, Pterodactyl. 



