Fossil Remains on the Yorkshire Coast. 



147 



The great bulk of the fossils, however, is found towards the upper portion of 

 the main mass of the stratum. The following species are the most abundant : 



Dicotyledonous ? wood. 

 Amphidesma recurvum. 

 Lucina lirata. 

 Avicula Braamburiensis. 



expansa. 



Gryphaea dilatata, var. ft. 

 Ostrea Marshii. 

 Terebratula ornithocephala. 



socialis. 



Turbo sulcostomus. 

 Belemnites abbreviatus. 



Belemnites tornatilis. 

 Ammonites flexicostatus. 



sublaevis. 



gemmatus. 



Calloviensis. 



var. Gulielmi. 



perarmatus. 

 ichthyodorsus (nob.). 

 Gamma (nob.), 

 rotifer (nob.), 

 oblisus (nob.). 



The following fossils also occur about the same position, but are less frequently 

 met with : 



Astacus rostratus. 

 Mya literata. 

 Cardium dissiraile. 

 Trigonia costata. 



clavellata. 



Pecten fibrosus. 



lens. 



Ostrea undosa. 

 Cirrus depressus. 

 Trochus guttatus. 

 Rostellaria bispinosa. 



Rostellaria bisulcata (nob.). 

 Nautilus hexagonus. 

 Ammonites Duncani. 



athleta. 



Gowerianus. 



bifrons. 



Kcenigi. 



plicatilis. 



Palatal bone of a fish. 



Ichthyosaurus. 



Plesiosaurus. 



Of these, I have obtained from the cornbrash, — 



Mya literata. 

 Cardium dissimile. 

 Trigonia costata. 



Trigonia clavellata. 

 Pecten lens. 



The following species occur also in the coralline oolite 



Mya literata. 

 Amphidesma recurvum. 

 Lucina lirata. 

 Trigonia clavellata. 

 Avicula Braamburiensis. 



Avicula expansa. 

 Pecten lens. 

 Ostrea Marshii. 

 Terebratula ornithocephala. 

 • socialis. 



The fossils of the Kelloways rock in general are highly characteristic. Few 

 of the Ammonites have been met with in any other stratum ; and so far as 



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