72 PROCEEDINGS COTTESWOLD CLUB 1912 



ON THE ABUNDANT OCCURRENCE OF INVOLUTINA 



LIASSICA (JONES) IN THE LOWER LIAS AT 



GLOUCESTER 



BY 

 CHARLES UPTON 



The object of this note is to record the abundant occur- 

 rence of the foraminifer Invohdina liassica (Jones) in the 

 Lower Lias at Gloucester. 



The specimens upon which the type-description were 

 founded by Rupert Jones,' were obtained by the Rev. P. B. 

 Brodie^ from the chff at Fretherne — from the Angulatus- or 

 Bucklandi-Zones.^ J. F. Blake records specimens from the 

 same zones at Redcar, Yorkshire.'' 



Recently, an excavation has been made by the canal-side, 

 near the Gas-works, at Gloucester, in clay of oxynoti hemera. 

 I have washed some of this clay, and was surprised to find a 

 multitude of specimens of Involutina liassica. Contrary to 

 the usual experience, ostracods were exceptionally rare. 

 There were numerous foraminifera belonging to the Dentalina- 

 and Cristellaria-Gxo\\Y>s. Holothuroids of the genus Henii- 

 sphceranthus occurred. The larger fossils included Cymbites 

 globosus (Oppel) Oxynoticeras spp., Schlotheimia glevensis S. 

 Buckman, Belemnites acutus Miller, Dentalium parvulum Rich, 

 ex J. Buckman MS., D. trigonale Moore, Rhynchonella, Astarte 

 cf. amalthci Qu., Cardita consiniilis Tate and Granmiatodon 

 (minute immature specimens). 



1. Proc. Cotteswold Nat. F.C., Vol. I. (portion for 1853), p. 241. . 



2. Idem. pp. 242-243. I did not find any specimens in the three samples of clay from 

 Fretherne that I examined. 



3. Vide Richardson, id., Vol. XVI., pt. 2 (1908), p. 137. 



4. " The Yorkshire Lias" (1876). p. 433, pi. .Will., tig. C. 



