376 



PKOCEEDINGS OF THE GEOLOGICAL SOCIETY. [June 19,. 



Table showing the Relative Distribution of Species throughout the Four 

 Fossiliferous Groups of North DevonX. 



Subkingdom CCELEJSTTEEATA. 



Class AcTmozoA. 



Pilton beds. 



Cucul- 

 l£ea-bds 



Ilfraconibe 

 group. 



Lynton 

 beds. 



o 



s 



s 



PR 





'S 



1 

 o- 



o 



o 

 Q 



1 



4i 



1 



1 



1 



1 



1 



"t 



_g 

 '■^ 



g 



a 



t 



t 

 t 



o 



1 



t 

 t 



t 



t 

 t 







* 











t 









t 



t 

 t 



Chsetetes tumidus, Phillips 







Cyathopbylluni ctespitosum, Goldfuss. . . 









































tiirbinatum, Goldfuss 



^ 























Favosites fibrosa, Lonsdale 



polymorpha, Blainville 











rr 



* 













Fistulipora cribrosa, Goldfuss 



4- 





•55- 



-X- 









Petraia celtica Lonsdale 



pluriradialis, PMlUps 



t 





Pleurodictyum problematicum, Goldf.. 















t 













t 



... 



t 



Stromatopora concentrica, Lonsdale . . . 

















Subkingdom MOLLUSCA. 

 Province I. Molluscoida. 



Class I. POLYZOA. 



Ceriopora, sp. ? 

























■Sf 



•K- 

 t 



t 

 t 



gracilis, Phillips 



t 













t 



t 















^ 

 * 



•K- 



•K- 



Fenestella antiqua, Goldfuss 



^ 



■J5- 



arthritica, PhiUijps 



plebeia, il/' Coy 















t 



t 





... 





t 



prisca, Goldfuss 







* 



•«• 



-;f 



■«• 



-X- 



t 



t 



Grlaiiconome bipinnata, Phillips 



Poljpora laxa, Phillips 



•5f 



¥: 



Class II. Brachiopoda. 

 Athyris concentrica, Von IBuch . . 



■5S- 

 t 

 t? 



t? 





^ 



* 



* 



* 



decussata, Sowerby 



















Atrypa desquamata, Sowerby 











* 







reticularis, Linnceus 











Calceola sandalina, Linnceus 













* 



■»• 



* 











Chonetes Hardrensis, Phillips 



^•^ 







■K- 



^ 



Cyrtina heteroclita, Pefrance 



Discina nitida, Phillips 







•x- 









^ 









t? 





Lingula squamiformis, Phillips 

























_i 









1 















X Seven or eight of the species included in this list, like Orthis calcar or Sfirifcra 

 rudis, are so doubtful that a note of interrogation is appended to their names. 



