634 



Mil. K. D. VERNON ON THE GEOLOGY AND [Dec. igi2y 



Species. 



Horizon. 



1 

 Locality. 



Artbrop oda. 







Artlirojpleura armata (Jordan). 

 (PI. LX, fig. 11.) 



Ej-der Coal. 



Baddesley Colliery. 



JEurypterus sp 



Thick Coal. 



Xewdigatc Collier}'. 



Anthrapalcemon sp. (PI. LX, fig. 7.) 



Seven-Feet Coal. 

 Marine Bed . 



Amiugton Colliery. 



Leaia leidyi var. saUeriana Jones 

 I n c e !• t a? s e d i s. 



Haunchwood Sand- 

 stones. 



Xew pit at Biddies 

 Wood/.near Kings- 

 bury. 



Vetacapsula cooper i Mackie & 

 Crocker. (PI. LX, fig. 3.) 



Thick Coal. 



Chilvers Coton 

 Clay.pit. 



In addition to its intrinsic interest, this fossil fauna, and mor& 

 especial!}' the marine fanna, may be expected to prove of considerable 

 value in distiuguishing definite positions in the Coal-Measure 

 sequence, for which purpose only the coal-seams are at present 

 available. 



Y. Geneeal Conclusions. 



The detailed description of the rocks and of their organic con- 

 tents being now completed, it will be convenient to summarize the 

 chief facts, which will be best understood from the appended table 

 (p. 635). 



The general conclusions of this paper may be summarized as 

 follows : — 



1. On stratigraphical and palseontological evidence it is shown 

 that a large area of rocks in Warwickshire, previously mapped as 

 Permian, is really of Carboniferous age. 



2. The Carboniferous rocks are subdivided into groups which, on 

 palaeobotanical evidence, are proved to belong to the following 

 three horizons of the Westphalian Series : — 



L'pper Coal Measures. 

 Transition Measures. 

 Middle Coal Measures. 



And the Lower Coal Measures are found to be absent. 



3. The fossil flora of the Middle Coal Measures, the Transition 

 Measures, and the Upper Coal Measures is discussed, and a brief 

 account is given of the freshwater and marine faunas of the Middle 

 Coal Measures. 



4. The Carboniferous rocks of Warwickshire are correlated with 

 those of the other coalfields of the Midland province, and it can thus 

 be demonstrated that there is a marked southward attenuation 

 and overlap of each of the subdivisions of the Carboniferous System. 



5. Some account of the Permian and the Trias is given, in order 

 to make clear the unconformable relationship of the Permian to 

 the Carboniferous on the one hand, and that of the Trias to the 

 whole of the Palaeozoic rocks of the district on the other. 



