238 PEOCEEDrN-GS OP THE GEOLOGICAL SOCIETY. [Jan. 22, 



carried on there ; but from those workings fragments of their fossils 

 are sometimes brought out. Mr. Leckenby, however, informs me 

 that, after a long prevalence of south-westerly gales, these beds may 

 be seen on the shore near low-water mark, and opposite to the cliff ; 

 and that he has himself obtained from them in that spot the charac- 

 teristic Ammonites. Having never had the good fortune to gain a 

 sight of these rocks, I have been unable to fix their exact position 

 on my map. The only fossils I am acquainted with from these 

 beds are, the very highly characteristic coronated Ammonites, viz. 

 A. gigcis, Zeit., and A. Oravesianus, D'Orb., together with A, 

 rotundus, Sow., and comparatively small specimens of Ammonites 

 giganteus, Sow. ? At one time these fossils could frequently be 

 collected from blocks on the shore of Filey Bay ; but owing to the 

 constant removal of material for road-metal, I believe that they are 

 now seldom so met with. 



c. Nucula (casts). 

 C. Lucina Portlandica, Sow. 

 r. Lithodomus (crypts). 



Wood. 



Plesiosaurus. 



Other fish-remains. 



Fossils of the Portlandian of Speeton. 



r. Belemnites, sp. 



c. Ammonites gigas, Ziet. 



c. Gravesianus, 2)' Orb. 



r. Irius, D' Orb. 



c. giganteus, Sow. ? 



C. rotundus, Sow. 



c. Area (casts). 



Although, as will be seen from the foregoing list, the actual 

 number of species obtained from this series is but small (and in no 

 district has an extensive fauna been obtained from beds of Port- 

 landian age), yet the presence of the eminently characteristic spe- 

 cies of coronated Ammonites (not to mention any others), taken in 

 connexion with the stratigraphical relations of the beds, is, I 

 believe, sufiicient warrant for the correlation of them proposed by 

 Mr. Leckenby. A very close correspondence between the fossils 

 of these beds of clay and those of the well-known Portland lime- 

 stone and sand of the South of England would scarcely be anti- 

 cipated ; and accordingly we are not surprised to find closer ana- 

 logies in the fauna of beds of the same age in the Jura of France 

 and Switzerland, — beds which, though at a greater geographical 

 distance, yet agree much more nearly with them in lithological 

 characters. 



E. Upper Kimmeridge. — This series of beds is, like the last, but 

 very imperfectly exhibited in Filey Bay. Fragments of it are 

 brought out from some of the coprolite workings ; and a small 

 portion of it in situ, exhibiting great contortions, was exposed 

 in November 1867, to the north of New Close Cliff, by a landshp 

 in the drift. But by far the best exposure in these beds is that 

 which I had the opportunity of observing in May 1867*, when, part 

 of the shore, opposite to Raincliff Gill, being bared of shingle and 

 sand, a portion of these beds, forming the denuded summit of an 

 anticlinal, was uncovered, and could be examined during low water 



* Professor Phillips appears to have witnessed a similar exposure of the 

 rame beds in 1826. Geology of Yorkshire, 2nd edition (1835), p. 48. 



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