﻿POST-TERTIARY AND DRIFT BRACHIOPODA. 



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i Terebratulina caput-serpentis, Linne. 



At p. 175 of Mr. Geikie's excellent " Memoir on the Glacial Drift of Scotland," in vol. i 

 of the ' Trans, of the Geological Society of Glasgow/ this species is stated to have been 

 found in the Post-Tertiary or Glacial clay of Ayrshire. 



2. Rhynchonella psittacea, Chemnitz. 



This species also has been quoted by Mr. Geikie as having been discovered in the 

 Post-Tertiary clay of Ayrshire. It is stated by Mr. Jeffreys to occur in Post-glacial 

 clay at March, in Caithness, and in a raised sea-bed between Lame and 

 Glenarm, Co. Antrim, thirty feet above the present sea-level. It has been dredged 

 in a fossil state near Shetland, Berwick, &c. ; and is not rare, in separate valves, in 

 the ' Mussel Clay ' at Christiansand, thirty to forty feet above the sea. 



SPECIES FROM THE DRIFT. 



Several species of Brachiopoda have been met with in the Drift of Great Britain, but 

 it has not always been possible to arrive at a positive conclusion as to the age of the 

 rock whence these fossils have been derived. We refer more particularly to those 

 that occur in the counties of Norfolk and Suffolk, and which are believed by some 

 geologists to have been derived chiefly from the Lower Cretaceous and Upper Jurassic 

 formations. I am not, however, aware of any rock in situ in this country wherein these 

 species have been actually discovered. 



Terebratula ovoides, Sow. Dav., Supplement, PI. I, figs. 12 — 13a (14, 15, 16?). 



Terebratula ovoides et T. lata, Sow. Min. Conch, pi. c, figs. 1 and 2, August, 



1815. 



— — Dav. Brit. Oolitic Mon., pi. viii, figs. 4, 5 (not 6, 7, 8, 9, 



which refer to Ter. trilineata, Young and Bird). 



— Rex, E. Ray Lankester. Geol. Mag., vol vii, p. 410, figs. 1, la, 18/0. 



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