192 ME. J. AV. KIEKBY OX THE FOSSILS 0E THE 



18. Teochammusta ptjsilla, Geinitz. 



Common, as good casts of both the flatly oval and cylindrical 

 forms of the species. 



About three-quarters of a mile to the eastward of the last loca- 

 lity, in the Lower Limestone that underlies the Middle or Pseudo- 

 brecciated Limestone, on the west side of Frenchman's Bay, I 

 have met with a few fossils, only two of which are determinable. 

 These are Leda spelunca/ria, and Spirifera TJrii. 



In another locality in this district, just on the outcrop of 

 the limestone to the !N~W. of Westoe, a few species have been 

 found by Messrs. Wright, Howse, and Lyall, of South Shields. 

 Through the courtesy of the two latter gentlemen (Messrs. Lyall 

 and Howse) I am permitted to remark, that the most common 

 fossil found was the Chondrites virgatus, Miinster, or JPolysipJw- 

 nia Sternbergiana, Xing. This species was very abundant, and 

 many of the specimens have the filamentary process finely pre- 

 served, while others are entirely denuded of them. There were 

 also associated the obscure vegetable fossil Zonarites digitatus, 

 Geinitz, and probably the remains of other plants, together with 

 the brachiopod Spirifera TJrii {Ilartinia Clannyana), Fleming. 



Though the occurrence of these two plants has not been often 

 noticed, I have observed them in several beds of the Upper Lime- 

 stone on the coast, between Marsden and Souter Point, usually 

 in a more imperfect condition than at Westoe. Axinus dubius 

 occurs with them. Near to Black Hall Eocks they are found 

 thickly strewed over the surface of a whitish laminated lime- 

 stone, associated with Axinus dubius. 



Hartley's Quarry. — Since 1864 the limestone exposed in the 

 SE. face of the quarry has been wrought to some extent.* The 

 mottled grey, massive limestone (No. 8 of Section, Trans. Tyn. 

 Nat. Field Club, Yol. VI, p. 213) there thickens considerably 

 and rises to the surface, the deposit of tufa-like limestone (No. 7) 

 thinning completely out in that direction. It (No. 8) also in 



* I ought to acknowledge the courtesy of James Hartley, Esq., M.P., in granting me 

 access to this locality. 



