64 FOSSIL ESTHERI^. 



and Somerton (PI. II, fig. 4, page 58). The section at the first-named place is de- 

 scribed by him in the ' Quart. Journ. GeoL Soc.,' vol xvi, p. 486, as being (immediately 

 under the Rhsetic beds) — 



Feet. Inches. 



Light-blue marl 6 



Variegated blue and red marls, -with alabaster about 100 



Various beds of dull grey and brown sandstone, enclosing nodules of marl, and 



containing Estheriee, Plants, traces of Fish-scales, and a Reptilian bone 3 6 



Blue and red marls 21 3 



Eed and blue compact marls about 40 



These are followed by other marls and sandstone, seen at Knap, about a mile and a 

 half distant. 



At page 490, in the same memoir, Mr. C. Moore states that near Stoke-St.-Mary, 

 " in the sides of the turnpike-road leading to Taunton, thin beds of Keuper are present 

 with Posidonomya minuta" 



The beds of Keuper at Somerton, Mr. Moore informs me, are of the same age as 

 those that he has noticed at Ciury, but very much thicker. 



V. Tlie New Med Sandstone in Cheshire and WarivicksMre. — The position of the 

 Estlierim in the Trias is shown by the following table of the Triassic strata in Cheshire, 

 for which I am indebted to my friend, Mr. E. Hull, E.G.S., one of the Geological 

 Surveyors, who lias especially studied the Triassic formation of England. The additional 

 notes, also, which Mr. Hull has kindly communicated to me, furnish us with further in- 

 formation relative to the correlation of the Trias of Warwickshire with that of Cheshire. 



The Triassic Group in Cheshire. 



1. Eed and variegated marls, with bands of grey and white sandstone (" Upper 

 Keuper Sandstone"). Fossils: Estheria^ and Annelides. (JPalcBoniscus 

 si'perstes, Egerton, at Rowington, Warwickshire. Estheriee and remains 

 of Fishes and Plants in Worcestershire, Warwickshire, Leicestershire, &c.) 

 Beds of rock-salt^ and gypsum occur in these marls, probably towards ,the 

 base. Thickness, nearly 3000 feet. 



2. Flaggy, micaceous, rippled sandstones and marls (" Waterstones " of William 

 Smith, Binney, and Ormerod), passing downwards into white and reddish 

 freestones, and resting on a base of calcareous breccia. " Lower Keuper 

 Sandstone;" thickness, 450 feet. Fossils: Cheirotherium ; Annelides. 

 {Rhynchosaurus, at Grinsill, Salop ; Bipteronofiis cyphus, Egerton, at 

 Bromsgrove ; Cheirotherium, Derbyshire and Staffordshire). 



^ Mr. Hull informs me that the Estheriu occurs in the bands of sandstone in the red and variegated 

 marls ; and that it is not common in Cheshire, but is more plentiful in the Midland Counties in this 

 position. 



2 Pseudomorphs of salt occur (according to Mr. Hull) plentifully in the sandstone and the sandy 



Keuper Division. 

 Thickness, more < 

 than 3000 feet. 



