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STRATIGRAPHICAL DISTRIBUTION OF 



FAMILIES, 

 GENERA, AND SPECIES. 



Order OPHIUROIDEA. 

 Fam. OPHiUKiDiE. 

 Palaeocoma Gaveyi, Wright 

 Milleri, Phillips . 

 Egertoni, Broderip 

 tenuibrachiata, Forbes 

 Brodiei, Wright 

 Murravii, Forbes . 

 Griesbachii, Wright 



Order CRINOIDEA. 

 Fam. PentacriniDjE. 

 Pentacrinus tuberculatus, Miller 



scalaris, Goldfuss . 



basaltiformis, Miller 



Goldfussii, M'Cog . 



robustus, Wright . 



punctiferus, Quenstedt 



Johnsonii, Austin . 



dichotomus, M'Coy 



Phillipsii, Wright . 



Milleri, Austin 



Austenii, Wright . 



subsulcatus, Goldfuss 



subteres, Goldfuss . 

 Extracrinus Briareus, Miller 



subangularis, Miller 



LOWER DIVISION. 



Lias,. 



Lower 

 Lias. 



Middle 

 Lias. 



Upper 

 Lias. 



Inferior Oomte. 



Murchi 

 ioiibe zone. 



Humplu'ie 

 sianus 

 zone. 



Parkinsoni 

 zone 



Great Oolite. 



Fuller's 

 Earth. 



Stonesfield 

 Slate 



Great 

 Oolite. 



Bradford 

 Clay. 



