TABLE OF STRATIFIED ROCKS. 



Showing the range in time of the great groups of Animals, and the 

 period during which each type was dominant. 



3 

 O 1 



SJ 2 



o 



N 

 O 

 w 



O 

 53 



o 

 o 



w 



SYSTEMS. 



RECENT 

 PLEISTOCENE 



(250 ft.) 



O 



o 



N 

 O 







PLIOCENE 



(100 ft.) 

 MIOCENE 



(125 ft.) 

 EOCENE 



(2600 ft.) 



CRETACEOUS 



i (7000 ft.) 



NEOCOMIAN 



JURASSIC 



(3000 ft.) 



TRIASSIC 



(3000 ft.) 



PERMIAN or ( 



DYAS J 



(500 to 3000 ft ) ( 



CARBONIFEROUS J 



(12,000 ft.) \ 



DEVONIAN & OLD 

 RED SANDSTONE 



(5000 to 10.000 ft.) 



SILURIAN 



(3000 to 5000 ft.) 



ORDOVICIAN 



(5000 to 8000 ft.) 



CAMBRIAN 



(20,000 to 30,000 ft.) 



EOZOIC— 

 ARCH-ffiAN 



(30,000 ft.) 



FORMATIONS. 



Terrestrial, Alluvial, Estuarine, and 

 Marine Beds of Historic, Iron, 

 Bronze, and Neolithic Ages 



Peat, Alluvium, Loess 



Valley Gravels, Brickearths 



Cave -deposits 



Kaised Beaches 



Palaeolithic Age 



Boulder Clay and Gravels 



Norfolk Forest-bed Series 

 Norwich and Bed Crags 

 Coralline Crag (Diestian) 



G-^ningen Beds Freshwater, &c. 



Fluvio-m-irine Series (Oligocene) 

 ^r^aneslCN'-muliticBeds) 



Maestricht Beds 



Chalk 



Upper Greensand 



Gault 



Lower Greensand 



Wealden 



Purbeck Beds 



Portland Beds 



Kimmfcridge Clay (Solenhofen Beds) 



Corallian Beds 



Oxford Clay 



Great Oolite Series 



Inferior Oolite Series 



Lias 



Rbsetic Beds 

 Keuper 

 Muschelkalk 

 Bunter 



Red Sandstone, Marl 

 Magnesian Limestone. &c. 

 Red Sandstone and Conglomerate 

 Rothliegende 



Coal Measures and MilMor.e Grit 

 Carboniferous Limestone Series 



Upper Old Red Sandstone 



Devonian 



Lower Old Red Sandstone 



Ludlow Serie3 



Wenlock Series 



Llandovery Series 



May Hill Series 



Bala and Caradoc Series 



Llandeilo Series 



Llanvirn Scries 



Areuig and Skiddaw Series 



Tremadoc Slates 



Lingula Flags 



Menevian Series 



Harlech and Longmynd Series 



Zechstein 



Pebldian, Arvonlan, and Dimetian 

 Huronian and Laurentian 



LIFK-PERIODS. 



s a 



la 



.-*«? I 



1 1 3 i | 



s a s s <m 



£ 



c.o = 



iv [5 



m 



o to 

 BJS'gS § 



S. fa „, .£ « 



to 

 c 



« 



to 



toy o 



— 



8 





1-3 



a. 



o 

 Q 



— • 



o 

 Q 



S.« 



*2 



11 





