LOWER LIAS : GLOUCESTER. 141 
The Brown marly shales above the Monotis-bed are probably 
equivalent to similar shales that occur at the junction of the 
Lower Lias and Rhsetic Beds at Penarth. (See p. 119.) 
In the vale that extends eastward by Frocester and Stonehouse, 
we find for the most part a clay -flat, but according to B. Witchell, 
the zone of Am. Bucklandi is represented near Eastington and 
Whitminster by clays, with bands of limestone that form low 
ridges.* 
Dark shales with bands of limestone are exposed in the banks 
of the Ship Canal north of Hardwicke, and again between Rea 
and Syms Bridges, north of Quedgley, where the beds are bent 
into a gentle synclinal. At Hardwicke, according to Dr. Wright, 
we meet with the zone of A. Turneri (or A. semico status). 
Higher beds of clay have been opened up in some of the brick- 
yards between Stonehouse and Stroud, and exposed in the railway- 
cuttings. Ammonites oxynotus has been found at Stonehouse, 
and pyritic ammonites, including A. densinodus and A. subplanicosta, 
belonging to the zone of A. armatus, have been found at Stand ish. 
Near the Gas-works at Stroud, clays representing the zones of 
A. Ibex and A. Henlcyi have been noted by E. Witchell ; and 
Mr. Lucy informed me that the zone of A. Henleyi had been 
proved at Brookthrop (Brookthorpe). 
Gloucester and Cheltenham. 
In the neighourhood of Gloucester, the lowest beds of the Lias 
have been well exposed in the railway-cutting at Lassington. 
The section is as followsf : 
FT. IN. 
r Clays and shales, with three bands of nodular 
blue-hearted limestone : Ammonites John- 
stoni - - - about 30 
Band of bluish-earthy limestone with A. 
planorbis - - - - 4 
Marly shales and limestones : Pleuromya 
Lower Lias crowcombeia - about 7 
(Zone of ; Three bands of blue argillaceous limestone 
Am. planorbis), j an( j s h a l e , with Ostrea liassica and Modiola 
minima in bottom bed - 1 4 
Papery shales 3 
Hard compact grey limestone, with blue 
shelly layer and conglomeratic fragments. 
Monotis decussata. Fish-remains. 
(_ Otnzamites gracilis - - 4 
Rhgetic Beds - Dark shaly marls, etc. (faulted against the 
Keuper Marls). 
The basement-bed, here grouped with the Lower Lias, has in 
many respects a Rhsetic aspect, the matrix being like Gotham 
Marble in texture. It indicates however some change in con- 
ditions, like the bottom bed of Lias noticed at Stormy Down near 
Bridgend, and the " Guinea Bed " of Warwickshire. It appears 
* Geol. Stroud, p. 16. 
f See also W. C. Lucy, Proc. Cotteswold Club, vol. viii. p. 225. 
