34 THE 'DERIVED' FOSSILS. 



The subjoined table gives a list of all the fossils known from 

 the Neocomian Black Grit rock, with some notes on their distribu- 

 tion elsewhere. 



FOSSILS FROM THE DARK GRIT BLOCKS. 



A mmonites sp. (collection J. F. Walker) ... ... ... IT. 



Hamitea, or Ancyloceras, small species with double row of 



dorsal spines ... ... ... ... H. 



Emarginula Neocomiensis, d'Orb., of the Shanklin and Ather- 



fieldbeds P. 



*Trochus, small ornamented species ... ... ... ... P.H. 



Trochus, also at Shanklin, Meyer ... ... ... ... U. 



Scalaria ... ... ... ... ... ... ... H. 



Tornatella H. 



Cerithium, muricated species ... ... ... ... U. 



Pecten orbicularis, Sby., Hilgay (Teall) H. 



striato-punctatus, Roemer (Wiltshire) ... ... P.H. 



*Perna Mulletti, Desh U.H. 



* JRicordeana, d'Orb. ... ... ... ... ... TJ. 



Nucula, ... ... ... ... ... ... ... H. 



Leda P. 



*Cardium subhillanum, large form ... ... ... ... U. H. P. 



Also occurs in the Donnington sands (Tealby), Shanklin, 

 and Punfield (Meyer). 



Small triangular bivalve U. H. P. 



*Thetis minor, Sby., of Shanklin U.P. 



*Cythercea Orbigniana, Forbes, of Shanklin ; and the Crackers, 



Isle of Wight H.S. 



Lucina U.P.H. 



*Goniomya (?) 

 Pholadomya Raulimana, d'Orb. of the Albien, Ardennes; also 



at Nutfield (Meyer) and Tealby H. 



? Scrobicularia phaseolina, Phill. ... ... H. 



Pholadomya ... ... ... ... ... ... ... H. 



Panopcea Neocomiensis, Leym. 



Corbula H. 



*Cucullcea errans, Kpng., also at Herrimere, and (?) in the 



Tealby series at Claxby U. 



* ,, Donningtonensis, Kpng., also in Lower Neocomian, 

 Tealby district U. 



*Mytilus lanceolatus, Sby. ... ... U. 



Trigonia spinosa, Park. ... ... ... ... ... U. 



* Vectiana, Lycett, of Shanklin and A therfield ... TJ. 

 *[Terebratula ovoides, Sby. var. occurs in the Herrimere rock, 



and is found phosphatised at Upware, Brickhill and 

 Potton] ILP. 



U indicates the dark grit blocks at Upware. 

 P Potton. 



H Hunstanton. 



