J. E. BLAKE ON THE KIMMERIDGE CLAY OE ENGLAND. 201 



but it is certainly present at Shotover, though much thinner than 

 in Dorsetshire. 



At Ely very little is seen of the Upper Kimmeridge ; for although 

 not more than 32 ft. of strata are exposed, the upper portion is 

 papery and bituminous, and contains Lucina minuscula, Discina 

 latissima, Cardium striatulum, with other fossils ; while below the 

 more clayey beds contain Amm. serratus and other species charac- 

 teristic of Lower Kimmeridge, Exogyra virgula forming a whole 

 band intermediate between them and going up into the shales. 



This last fossil, though met with at intervals through all the Dorset- 

 shire Lower Kimmeridge, is nowhere so plentiful as it is here, where 

 it might almost justify the title Yirgulian for the beds ; and we may 

 thus perhaps regard its abundance as marking the passage from 

 Lower to Upper Kimmeridge. 



In Lincolnshire the upper beds are again well developed, and are 

 continuously seen in pits or hill-side sections. Thej skirt the base 

 of the hills by Bolingbroke and Spilsby to the south of these towns, 

 where Astarte lineata, Avicula vellicata, Lingula ovdlis, and Discina 

 latissima have been collected by Mr. Keeping in the slaty beds, and 

 in the clay beds above them I have found Amm. biplex and Lucina 

 minuscula. 



Near Fulletby, west of the hill bounding the valley to the west 

 of the village, the Upper Kimmeridge is well displayed in a brick- 

 yard, where 15 ft. or more of bituminous paper-shales with large 

 limestone doggers near the top are seen. This is a good locality for 

 the fossils of the series, as they are very varied and numerous, ex- 

 emplifying well the remark before made on each thin layer having 

 its own fossils. 



The fossils here obtained are : — 



Ammonites biplex, Sow. 

 Aptychus biplex. 

 Belemnoteuthis. 

 Trochus retrorsus, Bla, 

 Dentalium Quenstedti, Bla. 

 Lucina minuscula, Bla. 

 Astarte lineata, Sow. 



Pecten lens, Sow. 

 Cardium striatulum, Sow. 

 Avicula vellicata, Bla. 

 Grervillia tetragona, Rom. 

 Ostrea gibbosa, Les. 

 Discina latissima, Sow. 



About four miles north of this, in the valley of Goulsby, where it 

 lies in a long tongue scooped out by the river Bain, it is again seen 

 in a brick-yard. It is here brought very close to the Red Chalk ; 

 but the succession of sandstone, ironstone, clay and sandstone may 

 bo traced between them. 



The beds here would appear to be lower in the series, the section 

 being 



Papery shales, 9 in., 



Blue dicey clay, 3 ft. 4 in., 



Harder fossiliferous band, 1 ft. 6 in., 



Blue clay, 14 ft., with nodules at the base, 



thus showing the characters of the lower series. The fossils, how- 

 ever, are Amm. biplex, Lucina minuscula, Ostrea gibbosa, Discina 

 latissima, and Belemnoteuthis antiquus (?), two fine specimens of 



