VOL. XVI.(3) FOREST MARBLE OF TARLTON 237 
ON THE OCCURRENCE OF CHARA-NUCULES 
IN THE 
FOREST MARBLE OF TARLTON, NEAR KEMBLE 
GLOUCESTERSHIRE 
BY 
CHARLES UPTON 
Near the village of Tarlton, and immediately to the 
westward of the spot where the Great Western Railway 
Main Line crosses the Thames and Severn Canal; is a 
patch of Cornbrash resting upon the Forest Marble Clay. 
A few years ago an excavation was. made in the side 
of the exposure in order to obtain clay for the purpose of 
puddling the Canal (Plate XXVII.) The opening which 
was made showed the following section : 
SECTION NEAR TARLTON 
; Thickness in 
Top soil. feet inches / 
Rubbly Limestone embedded in reddish / 
marl and containing Oraithella obovata 
(Sow.) in considerable numbers, Zere- me 
peau bratula intermedia (Sow.) and a number 
of pelecypods: about ... ae sos 
Hard massive limestone with few fossils =z oO 
Pale-grey clay, separated from the rock- 
bed of the Cornbrash by a thin layer of 
red irony clay, gettin ellower to- 
Feat bl wards ie face. aa af ancailae thick- 
:songg ness, but averaging... os ion 
Hard brown flaggy limestone with Ligntte : 
base not seen. 
Thinking that the clay-beds might possibly contain 
Ostracoda, on one of my visits I took home some samples 
uw 
° 
