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FOSSILS OF THE UPPER SANDSTONE AND SHALE. 



THESE consist entirely of the remains of plants, of the natural fami- 

 lies, equisetaceas, lycopodinea?, filices, cycadese, and palmar, (Sternberg,) 

 and of fibrous and ramified wood. Only one locality, a bed of shale 

 with nodular ironstone, at the island between Red cliff and Gris- 

 thorpe cliff, has produced the more delicate species ; but this is rather 

 owing to their more fortunate exposure in that situation, by the exten- 

 sion of the shale along the shore, than to their absolute deficiency at 

 other places in the same range. Traces of equisetiform and cycadiform 

 plants may, with attention, be perceived at the White Nab ; a beautiful 

 sphsenopteris has been found by Mr. Bean at Scalby ; and dicotyledonous 

 wood, in fragments and branches, occurs generally in the sandstone rocks 

 above the gray limestone, or Bath oolite. The following catalogue in- 

 cludes the species which appear to me to be certainly distinct, grouped 

 chiefly after Brongniart's method, according to the arrangement and 

 neuration of their leaves. I have ventured to assign names to the new 

 species, subject to the correction of more experienced botanists, for whom 

 I have endeavoured faithfully to copy the characteristic structure of the 

 plants. 



MONOCOTYLEDONOUS PLANTS. 



Equisetum (traces of) ... ... At the White Nab. 



Lycopodites uncifolius ... PL VIII. fig. 3. ) Also in the lower sand- 



magnified leaf of ditto ... 3 a. t stone. 



Thuites expanses ? Sternberg ... PI. X. fig. 11. Also Stonesfield, and in 



lower sandstone. 

 Scolopendrium solitarium ... ... PI. VIII. fig. 5. Also Stonesfield, and in the 



( Sternberg, tab. xxxvii. fig. 2.) ... lower sandstone and shale. 



Aspleniopteris Nilsoni ? ... ... The nervures stronger than 



(Sternberg, tab. xviii. figs. 3,4,5?) ... PL VIII. fig. 4. in Sternberg's specimen 



from Hor. 



Sphamopteris. 1. digitata ... PL VIII. fig. 6. Compare Sph. laxa, Stern- 



berg. 



2. stipata ... PL VIII. fig. 4. Also in the lower sandstone. 



U 2 



