I860.] 



WRIGHT — LIAS. 



393 



Section of the Ammonites planorbis beds, Ostrea beds, and Lower 

 Saurian beds at Brockeridge and Defford Commons. 



Zones. 



Strata and Organic Contents. 



5*3 





- 



.s 



10 



■- 



11 



CO 



12. 



<a 



13. 



M 



14. 



^ 





Tt 





a 



- 



15. 



a 



16. 



* 



17 



? 







18. 





19. 



Light-coloured clay 



White laminated limestone. " First rub," Brockeridge 

 " Chance rub," Strensham 



Brown laminated clay, with compressed white shells 

 of Amnion ites planorbis 



Blue argillaceous limestone "1 " Double rub," Brocke 



Brown shaly clay v ridge ; " Double nurf." 



Blue limestone J Strensham. 



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 Brocke- 

 ridge, " Kings nurf" at Strensham 



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

 sham 



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. Vertebra? of Ichthyosaurus, test and spines 

 of Cidaris Edwardxii, He/nqpedina, sp., and Fishes' 

 scales 



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



Dark shale 



Insect-limestone ; a hard argillaceous limestone, con- 

 taining the elytra and other remains of Insects 



Blue shale 



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

 Astarte, sp 



ft. in. 



3 



4 



3 



3 



2 



3 



3 



1 



1 6 



3 







































ft. in. 



3 

 4 



2 



3 



6 



5 



3 



G 



1 3 



4 



I have placed the above sections together for the purpose of com- 

 parison : they were first made by my friend the Rev. P. I!. Brodie, 

 and have been subsequently examined by myself with similar results. 

 These sections ahow tin- 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 Dndfield, of Tewkesbury, obtained from the 

 infra-ammonite Lias beds at Brockeridge enumerated in the pre- 

 ceding sections, and from other strata occupying the same horizon in 

 the vicinity <>f that town, a very fine series of Saurian remains, \\ hioh 

 were all sold and dispersed in June L843. Prom my cotes, of thai 

 collection, I find there was a specimen of Ichthyosaurus intermedius, 

 about 8 feet in length ; the two fore-paddles and a portion of the 

 scapular axch were tolerably complete : and there were upwards of 100 

 vertebra' and riba Dearly all iii place. I. tenuirostris; l feel in 

 length; the skulls, jaws, and teeth well preserved, the vertebral 

 column tolerably complete ; and likewise one fore-paddle. /. ■ 

 ,,)niii.< ■. verj fine paddles. /. jiiiiti/,../,,,, • large skull with orbital 



\"l . \V|. — p\i;l i. 2 c 



