Fossil Remains on the Yorkshire Coast. 



229 



Natica adducta. 



turnidula. 



Ostrea Marshii. 



solitaria. 



Astarte elegans. 



minima. 



Modiola pulclna. 



cuneata. 



Mytilus sublaevis. 

 Cardita similis. 

 Pecten virguliferus. 



abjectus. 



Trigonia angulata. 



costata. 



striata. 



Towards the upper part^ are found. 



Turritella muricata. 



quadrivittata. 



huraifusa. 



Avicula Braamburiensis. 

 Nucula axiniformis. 

 Isocardia concentrica. 

 Cardium incertum. 

 Pholadomya ovalis. 

 Unio abductus. 

 Gastrochaena tovtuosa. 



Terebratula obsolete. 

 Caryophyllia convexa. 



whilst the top of the seam is characterized by Turritella cingenda, Melania 

 Heddingtomnsis, and Terebratula obsoleta. 



(/.) The highest beds of the inferior oolite consist of seven or eight feet 

 of hard ferruginous sandstone, and are apparently destitute of fossils. 



The Ammonites striatulus, Lingulus Beanii, Orbicula reflexa, Terebratula b'ldens, and the Avicula 

 echinata sometimes occur in one mass in the lowest bed (a.). The Lingula and Orbicula are always 

 found together, but the Ammonites are more frequently in masses by themselves. The Avicula 

 and Terebratula bidens are very rare. 



The characteristic fossils of this stratum are given by Professor Phillips in 

 his Geology of Yorkshire, and the list continues correct. 



Lower Carboniferous Series of Smith. 



With the exception of the upper sandstone and shale, the divisions of this 

 series are the most irregular of any on the Yorkshire coast. I have, however, 

 taken sections at nearly every point where the series occurs, and I have been 

 guided in my details by those which appeared the most striking and uniform. 

 The best defined and least irregular are at the elevated cliffs between Clough- 

 ton Wyke and Blue Wick, where the whole of the series is well exposed ; 

 and where the upper and middle beds, containing the greater portion of the 

 fossil vegetables, are alone visible. 



The following section is in ascending order : 



(a.) Immediately above the inferior oolite, is a black carbonaceous shale, con- 

 taining no vegetable impressions ; about 10 feet. 



