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GEOLOGICAL MEMOIRS. 



Franconia. 



Dark Coloured Clays. 



Am. macrocephalus, ornatus, 

 Jason, Parkinsoni. Terebr. 

 varians. 



Brown Marls. 



Belera. giganteus. Am. Hum- 

 phriesianus. Tereb. per- 

 ovalis, spinosa, Theodori. 



Ornati Clay. 



Am. ornatus, Lamberti, hecti- 

 cus, bipartitus, annularis 

 Clythia. 



Macrocephali Bed. 



Clays. 



Am. Parkinsoni. Trigonia 

 costata. Ostrea costata. 



Brown Sandstones. 



Am. discus, Murchisonse. 

 Trochus undulatus. 



Swabia. 



Black Clays. 



Am. opalinus. Nucula Ham- 

 meri,claviformis. Bel. cla- 

 vatus. 



Brown Oolitic Clays. Tere- 

 bratulse. Am. bifurcatus. 

 Bel. giganteus. 



Clays and Calcareous 

 Marls. 



Am. coronatus, Humphre- 

 sianus. Ostrea crista galli. 



Brown Clays. Cidaris spines 



Blue Limestones. 

 Pecten demissus. 



Sandstones and Clays 



Am. Murchisonse. Pecten 

 personatus. Gryphsea cal- 

 ceola. 



Opalinus Clays. 



Am. opalinus. Nucula Ham- 

 meri. Trigonia navis. 



Table II.— The Brown 



Switzerland and the Jura 



Oxfordian Marls. 



Am. annularis, Lamberti, 

 hecticus. Belemn. has 

 tat us. 



Kellovian. 



Am. macrocephalus, anceps 

 ornatus. 



Cornbrash, or Whitish 

 Oolite. 



Forest Marble. 



Compact blue limestone. 

 Corals. 



Great Oolite. 



Vesulian Marls. 



Belem. giganteus. 

 Cidaris spines. Nerinaea. 



Coral Limestone. 



Lsedonian Limestone. 



Ferruginous Oolite. 

 Am. Murchisonae. 



