﻿82 



GEOLOGICAL MEMOIRS. 





Table III.— The Bl ac 



Franconia. 



Swabia. 



Switzerland and the Ju ra 



Clays. 



Am. hircinus, radian9, Juren- 

 sis. Bel. digitalis, acuarius. 



Posidonomya Schists. 

 Saurii. Pisces. Avicula sub- 

 striata. Am. i ubaimatus, 

 heterophyllus. 



Jurensis Marl. 

 A. radians, Jurensis, insignia 



Posidonomya Schists. 

 Saurii. Pisces. Loligo. 



nulatus. 

 Belemnites acuarius. Penta 



crinus subangularis. 

 Am. costatus. Terebratula 



digona. Belemnites paxil- 



losus. 



Amaltheus Clays. 



Superliassie Grit. 

 Asterias. 



Superior Lias. Trochus 



Marls. 

 Am. communis, radians, in- 



signis, Jurensis, Germaini, 



sternalis. 



Bituminous Schists. 



A. Davfei, lineatus. 

 Belemnite-bed. 



Numismalis Clays. 

 Am. Taylori, Jamesoni. 



Plicatulse Marls. 



Marls with Am. marga- 

 ritatus. 

 Am. Davjei. 



Grey Marls with Belem- 

 nites. 

 Terebratula numismalis. 



Cymbium Beds. 

 Mactromya gibbosa. Am. ra- 

 ricostatus, oxynotus, bifer, 

 natrix. 



Am. raricostatus. 



Am. oxynotus, et bifer. 



Pholadomya-bed. Am. 

 Brookii. T. vicinalis. 



Turned Clays. 

 Am. Turneri. 



Pentaerinus basaltiformis. 

 Am.Bucklandi. Gryphaja 

 arcuata. 



Arietes Beds. 



Sandstones. 

 Am. angulatus. 



Thalassites Bed. 

 rhalassites concinnus. Am. 

 psilonotus. 



Blue Clays. 



Aschach Limestones. 

 1. natrix, ibex. Terebratula 

 vicinalis. 



Pentaerinus. Am. Bucklandi. 



Limestone with Gryphsea 

 arcuata. 





Hard, coarsely crystal- 

 lized Sandstones. 



Cardinia concinna, securi- 

 formis. 





Keuper. 



Keuper. 



Keuper. 



FRAAS ON THE JURA FORMATION. 



83 



^Serie 8 in 



^rgundy. 



Normandy. 



South-England. 



North-England. 



Superliassie Grits, 

 whus-marls. Am- 

 aoibifrons, radians.: 



toyCement Bed. 1 

 Pisces. Am. 

 itteroiiliyllus, annu- 







Whitby Shale. 

 Posidonomya. Inoce- 



Am. Walcottii, aunu- 

 latus, subarmatus, he- 

 terophyllus. Nucula 

 ovum. 



ls. 









fvmbium Lime- 

 stone. 

 Gryphiea gigantea. 

 kamaltheus. Pec- 

 I, digona, lagenalis. 

 Ara. Davffii. 



Am. communis, Thou- 



Alum Shale. 

 {Lyme Regis.) 

 Saurii. Am. Walcottii, 

 heterophyllus. 



Jet Rock. 



Banbury Sand- 

 stone. 

 Belemnites penicil- 

 latus. 



Edgehill Sand- 

 stone. 

 (Ferruginous.) 

 Amphiura. Mya. Unio. 



Memuite Marls. 



arsensis, Holandrei, 

 bifrons. 



Marlstone. 

 Am. Stokesii. 



Downcliff Sandv 

 Marl. 

 Am. armatus, Taylori. 



T.rimosa, numismalis. 



Fish of Croissilles. 







Gryph. Maccullochii. 



Aberthan Blue 

 Marl. 



*■ Brookii. T. vicina- 



Grypb. gigantea. T. 

 litLO'iialis, quadrifida. 



Am. margaritatus, he- 

 terophyllus. Spirifer. 



lis. 



Am. Bucklandi. 



Am. oxynotus, bifer. 



limestone with 

 GryphaeEe and 

 it. Bucklandi. 



Euomphalus. Conus. 

 Am.Jamesoni.Davaji. 



Lias. 



1 beari, &c. (Rugby). 



fcmuriau Group. 

 Cardinia. 



Inferior Lias. 

 Cardinia. 



Am. angulatus. 

 Lima Hermanni. Pa- 

 chyodou concinnus 

 hybridus. 



Linksfield Sand- 

 stone. 



•^ose& Granite. 



Trilobite Sand- 

 stone. 



New Red 



Sandstone. 



VOL. VII.— 



PART II. 





H 



