LOAVER GREENSAND, 51 



Ammonites Deshai/sii, which occurs in the " marhie band " at 

 Punfield [the top of the Atherlield Clay] abounds in the higher 

 beds of the Neocomian, but is not known in the Urgonien or any- 

 lower bed. Vicarya Lujani and several other of the Punfield shells 

 are well-known and characteristic Rhodanicn forms. 



In the east of Spain"^ the upper and middle Neocomian rocks are 

 greatly developed, and contain beds of coal and jet which are 

 extensively worked. They are divisible into three series, namely : — 



An upper series of variegated clays and brightly coloured sands 

 (crimson, grey, violet, and Avhite), 600 feet in thickness, 

 probably in great part freshwater, but containing a few marine 

 shells of Upper Neocomian affinities. 



A middle series, consisting of ferruginous sandstones and lime- 

 stone, alternating with sandy clays, and containing ten beds of 

 coal, lignite, or jet at Utrillas, where they are 530 feet thick. 

 These beds contain the same fossils as the " marine band " of 

 Punfield. They are characterised by six species of the 

 gasteropod Vicar t/Uy three of which occur at Punfield, and 

 one in the Rliodanien of Switzerland. Hardly a fossil is found 

 in the " marine band " of Punfield [the top of the Atherfield 

 Clay] which does not also occur in these Spanish beds. 



A third and lowest series, consisting of about 500 feet of 

 alternations of limestones, sandstones, and marls, with jet and 

 coal, and containing Urgonien fossils. 



* See also H. Coquaud. Description geologique de la formation cretacee de la 

 Province de Teruel. Bull. Soc. Geol. de Frajice, ser. 2, tome xxiv. p. 144 

 (1868). 



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