466 



Mr. Austen on the 



established groups, and because the beds form only one portion of a great primary fossillferous series 

 for which we already possess materials for subdivisions founded on zoological views, which are preferable 

 to geographical ones. 



Though the limestone band of Chudleigh has not had that attention bestowed 

 upon its fossils which it deserves, we know enough to place it with certainty with 

 the slate and calcareous system of South Devon, rather than with the black lime- 

 stone of Lew Trenchard, Trescott, Drewsteignton, &c. The Favosites ? fibrosa, 

 which alone forms strata many feet thick, connect it with the limestones of Ashbur- 

 ton and Plymouth, where that coral is equally abundant : it contains Stromatopora 

 concentrica, in common with all the subordinate bands of Broadhempston, Staver- 

 ton, &c. ; Stromatopora polymorpha and large Strygocephali, as do the Ogwell 

 beds ; and the Loxonema praterita and Buccinum spinosum, so numerous at New- 

 ton Bushell. 



The suite of fossil shells and zoophytes contained in the limestones of Newton, Barton, and Babba- 

 combe correspond in so remarkable a manner, that they may safely be considered as one group, formed 

 at the same time, and under like conditions ; but the Newton quarry, generally speaking, exhibits the 

 specific characters of the fossils much more distinctly than that of any other locality, and it is therefore the 

 best place to which the collector can be referred. This quarry has aiforded me the following list of species, 

 which is two-thirds more numerous than the list above alluded to*, by the addition of the zoophytes 

 identified and described by Mr. Lonsdale f, and of the new species of Professor Phillips ;}; and Mr, J. de 

 Carle Sowerby§. 



Brontes flabellifer, Goldf. Nova Acta\\. 

 Calymene Latreillii, Stein. Mem. Soc. Geol.^ 



Sternbergii, Munster, Beitrcige.** 



Orthoceras cinctum. Sow. Min. Con. 



ellipsoideum, Phil. Pal. Foss. 



pyriforme. Sow. Silur. Syst.W 



tubicinella, Sow. Geol. Trans. ^ 



ventricosum. Stein. Mem. Soc. Geol. 



Cyrtoceras armatum, Phil. Pal. Foss, 



fimbriatum, Phil. id. 



marginale, Phil. id. 



nautiloideum, Phil. id. 



nodosum, Phil. id. 



■ obliquatum, Phil. id. 



ornatum. Gold. MS. 



■ quindecimale, Phil. Pal. Foss. 



reticulatum, Phil. id. 



Cyrtoceras rusticum, Phil. Pal. Foss. 



tridecimale, Phil. id. 



Nautilus germanus, Phil. id. 

 Goniatites excavatus, Phil. id. 



■ — — globosus, Munster, Abhandl.XX 



serpentinus, Phil. Pal. Foss. Sf Geol. 



Yorks. §§ 



transitorius, Phil. id. 



Bellerophon hiulcus, Soiv. Min. Con. 



striatus, JBronn. Leth. Geog. || || 



Wenlockensis, Sow. Silur. Si/st. 



Woodwardii, Sow. Min. Con. Index. 



Buccinum acutum. Sow. Min. Con. 



arculatum, Schloth. Petref.%% 



imbricatum, Sow. Min. Con. 



spinosum. Sow. id. 



Murex ? harpula. Sow. id. 



* Vide Report of British Association, 1 839, p. 69. 



\ Phillips, ' Palaeozoic Fossils.' 



II Nova Acta Acad. Caes. Leop. Cur. Nat. t. xix. 



** Beitriige zur Petrefactenkunde, Heft 1. 1839, Heft 3. 1840. 



XX Abhandl. viber Planuliten und Goniatiten, 1832. 



II II Lethaea Geognostica. 



f Geol. Trans., 2nd Series, vol. v. 

 § Geol. Trans, vol. v. 

 5[ Mem. Soc. G^ol. de France, tome i. 

 ft Mr. Murchison's Silurian System. 

 §§ Geol. Yorkshire, Part 2. 

 ^% Scblotheim, Petrefactenkunde. 



