68 



LOWER LIAS. 



Section of the Ammonites planorbis, Ostrea, and Lower Saurian beds at Brocheridge 



and Defford Commons. 



Zones. 



Strata and Organic Remains. 



pq 



o 



Light-coloured clay 



White laminated limestone. " First rub," Brockeridge ; " Chance 



rub," Strensham 



Brown laminated clay, with compressed white shells of Ammonites 



planorbis 



Blue argillaceous limestone") „ , , 



„ , , , Double rub, Brockeridge ; 



Brown shaly clay r ^ , „ 



,. ^ ^ " Double nurf," Strensham. 



Blue limestone J 



Dark clay, with Saurian remains, " Yard clay " 



Hard blue limestone. Ostrea liassica on the surface of the 



rock. This bed is called " Red nurf" at Brockeridge, " King's 



nurf" at Strensham 



Dark clay. The second bed of " Yard clay " at Strensham 



Blue limestone. The "Queen's nurf," Strensham 



Blue clay 



Hard blue limestone, with Modiola minima 



Paving-stone, separated by an inch-band of clay 



Dark shale. Vertebrae of Ichthyosaurus, tests and spines of 



Cidaris Edwardsi, Heinipedina, sp., and Fishes' scales 



Hard blue limestone, in square blocks. " Brick-bed" 



Dark shale 



Insect limestone ; a hard argillaceous limestone, containing the 



Elytra and other remains of Insects 



Blue shale 



Light-blue limestone, with Cardinia, sp.. Area, sp., and Astarte. 



sp 



Brockeridge. 



ft. in. 

 3 0 



0 4 



0 0 

 0 0 

 0 0 



0 0 

 0 0 

 0 0 



0 0 



0 0 



0 0 



Strensham. 



ft. in. 

 3 0 



0 

 3 

 0 

 0 

 0 

 0 



0 6 

 0 5 

 0 § 



0 6 



1 3 



0 4 



I have placed the above sections together for the purpose of comparison : they were 

 first made by ray friend, the Rev. P. B. Brodie, and have been subsequently examined 

 by myself with similar results. These sections show the uniformity which prevails in 

 the Lower Saurian beds of Gloucestershire and Worcestershire, and how much they 

 resemble their correlative strata at Street. 



The late Mr. James Dudfield, of Tewkesbury, obtained from the infra-ammonite 

 Lias beds at Brockeridge enumerated in the preceding sections, and from other strata 

 occupying the same horizon in the vicinity of that town, a very fine series of Saurian 

 remains, which were all sold and dispersed in June, 1843. From my notes of that 



