﻿80 



GEOLOGICAL MEMOIRS. 



Table II.— The Brow, 



Dark Coloured Clays. 

 Am. raaerocephalus, ornatus 

 Jason , Parkinsoni. Terebr 



Brown Marls. 

 Belem. giganteus. Am. Hum 

 phriesianus. Tereb. per 

 ovalis, spinosa, Theodori. 



Brown 



Am. discus, Murchisona:. 

 Trochus undulatus. 



Ornati Clay. 

 Am. ornatus, Lamljerti, hecti- 

 cus, bipartitus, annularis. 

 Clythia. 



Macrocephali Bed. 



Clays. 



Am. Parkinsoni. Trigoni 

 costata. Ostrea costata. 



Switzerland and the Jura, 



Brown Oolitic Clays. Tere 

 bratulse. Am. bifurcatus 

 Bel. giganteus. 



Clays and Calcareous 

 Marls. 

 Am. curonatus, Humphre- 

 sianus. Ostrea crista galli. 



Brown Clays. Cidaris spines. 



Blue Limestones. 

 Pecten demissus. 



Sandstones and Clays 

 Am. Murchisona;. Pecten 

 personatus. Grypluea cal- 

 ceola. 



Black Clays 

 Am.opalinus. Nucula Ham- Opalinus Clays, 

 iri.claviformis. Bel. cla- Am. opalinus. Nucula Ham 

 men. Trigonia navis. 



Oxfordian Marls. 

 . annularis, Lamberti 

 ecticus. Belemn. has' 

 itus. 



Kellovian. 

 Am. macrocephalus, anceps, 



Cornbrash, or "Whitish 

 Oolite. 



Forest Marble. 



Great Oolite. 



Vesuliau Marls. 



Belem. giganteus. 

 Cidaris spines. Nerinsea. 



Coral Limestone. 

 Leedonian Limestone. 



Ferruginous Oolite. 

 Am. Murchisona;. 



FRAAS ON THE JURA FORMATION. 



81 



,>c Series in 



Burgundy. 



Kellovian and 

 Oxfordian. 

 limestone, with Am. 

 annularis, cordatus. 



Cornbrash 

 or Oolitic limestone. 



Normandy. 



South-England. 



North-England. 



Dives Clays. 



(Oxfordian.) 



Am. Jason, ornatus, 

 Lamberti, subtevis. 

 Gryphsea dilatata. 



Kellovian. 



Am. cordatus, capri- 

 nus, Lamberti. 



Black marls. Ostrea 

 Marshii. Gervillia. 

 Perna. 



Oxford Clay. 

 Am. caprinus, perar- 

 matus, macroccpha- 

 lus, sublsevis. 



Cornbrash. 

 Terebratulae. 



Oxford Clay. 

 Am. Jason, Duncani, 

 athleta. Astacus 

 (Clythia). 



Kelloways Rock. 



Cornbrash. 

 Galerites depressus. 

 Clypeus. Pholadomya 



Murdiisoni. Ostrea 



Marshii. 



Forest Marble. 



Corals. Apiocrinites 

 rotundus, Parkinsoni, 

 &c. 



(Luc Oolite.) 



Terehr. digona, eon- 

 cinna. Corals. He- 

 micidaris. 



Great Oolite. 

 (Caen Oolite.) 



Bayeux Oolite. 



Am. Parkinsoni, coro- 

 natus, Huniphriesia- 

 nus. Pleurotomaria 

 Trigonia costata. Os- 

 trea Marshii. Tere- 

 bratula, &c. 



Forest Marble. 

 Corals. 



Great Oolite. 



Fuller's Earth 

 Marls. 

 Gervillia. Pholadomya. 



Inferior Oolite. 

 Am. Parkinsoni. 

 Donax Alduini. 



Entrochi Lime- 

 stone. 





Forest Marble. 

 Pentacrinus vulgaris. 

 Corals. 



Bradford Clay. 

 Apiocr. intermedins 

 rotundus, &e. Tere- 

 bratula digona. 



Great or 

 Bath Oolite. 



Fuller's Earth. 

 Gervillia. Pinna. Os 

 trea acuminata. 



Upper Moorland 



Sandstone. 

 Monocotvledonous 

 Plants. 



Grey Limestone. 

 Am. Blagdeni. Tri- 

 gonia costata. Perna 

 quadrata. 



Lower Moorland 



Sandstone. 

 Monocotyledonous 

 Plants. 



Ferruginous 



Oolite. 

 Terebratula. 



Inferior Oolite. 

 Pecten personatus. 

 (Marly Sandstone.) 



