636 



GEOLOGY. 



composition of the lifeless and rigid masses around us, may be formed from the following 

 list of strata by Dr. Mantell, which are wholly, or in great part, composed of animal 

 remains : 



Strata. 



Trilobite schist 

 Dudley limestone - 

 Shelly limestone 



Mountain limestone 



Encrinital marble - 



Muscle-band 



Ironstone nodules - 



Lias shales and clays 



Limestone - 



Lias conglomerates - 



Gryphite limestone - 



Limestone 



Stonesfield slate 



Pappenheim schist - 



Bath stone 



Limestone 



Coral -rag 



Bradford limestone - 



Portland oolite 



Purbeck and Sussex marble 



Wealden limestone - 



Tilgate grit (some beds) 

 Farringdon gravel - 

 Jasper and chert 

 Green-sand - 



Chalk 



Maestricht limestone 



Hippurite limestone 



Hard chalk (some beds) 



Flints 



Limestone 



Nummulite rock 



Septaria - . 



Calcaire grossier 



Gypseous limestone 



Siliceous limestone 



Lacustrine marls 



Monte Bolce limestone 



Bone-braccia - - 



Sub- Himalaya sandstone 



Tripoli 



Richmond marl 



Semiopal * ... - 



Mountain marl - - 



Guadaloupe limestone 



Bermuda limestone 



Bermuda chalk 



Bog iron ochre 



Prevailing Fossils. 

 Trilobites and shells 

 Corals, crinoidea, shells, and trilobites 

 Products, spirifera?, &c. 



Corals and shells - 



Lily-shaped animals and shells 

 Fresh-water muscles ... 



Trilobites, insects, and shells 

 Pentacrinites, reptiles, fishes 

 TerebratulsAnd other shells 

 Fishes, shells, corals ... 



Shells, principally gryphites 

 Terebratulae, and other shells 

 Shells, reptiles, fishes, insects 

 Crustacea, reptiles, fishes, insects 

 Shells, corals, crinoidea, reptiles, fishes 

 Cephalopoda, principally ammonites 

 Corals, shells, echini, ammonites 

 Crinoidea, shells, coral cephalopoda 

 Ammonites, trigoniae, and other shells 

 Fresh-water shells, Crustacea, reptiles, fishes 

 f Cyclades, and other fresh-water shells, ~\ 

 \ Crustacea, reptiles, fishes. J 



Reptiles, fishes, fresh-water shells - 

 Sponges, corals, echini, and shells - ' " 

 Shells, sponges, and animalcules - 

 Fibrous zoophytes - ... 



Corals, infusoria, echyii, shells, fishes 

 f Corals, 'shells, ammonites, belcmnites, and~i 

 \ other cephalopoda reptiles. J 



Shells, principally hippurites 

 Echini and belemnites ... 



{Sponges and other fibrous zoophytes, in-~) 

 fusoria, and spines of zoophytes, shells, [ 

 corals, crinoidea. J 



Fresh-water shells 



Nummulites .... 



Nautili, turritellae, and other shells 

 Shells and corals ... 



Mammalia,pala?otheria,&c.birds,reptiles,fishe* 

 Shells 

 Cyprides, phryganeae, fresh-water shells 



Fishes 



Mammalia and land shells 



Elephant, mastodon, and reptiles 



Infusoria .... 



Animalcules and infusoria 



Infusoria .... 



Infusoria .... 



HUMAN skeletons, land-shells, and corals 



Corals, shells, serpulae - ."'.' 



Comminuted corals, shells, &c. 



Infusoria .... 



Formations. 

 Silurian system. 



f Carboniferous 

 \ system. 



Lias. 



Inferior oolite. 

 Oolite. 



Wealden. 



Shanklin sand. 

 Chalk. 



Tertiary. 



Human epoch. 



