322 Cosmo Johns — Carboniferous Beds, Inglcton. 



the final collapse of the pve-Carbouiferous land surface at Ingleton, 

 north of the Craven faults, was contemporaneous with widespread 

 disturbances extending from Ireland into Wales, and was indicated 

 in the Bristol area by the outpouring of the Weston lava. 



The widespread disturbances alread}' referred to would naturally 

 follow or accompan)' the final breakdown of the ancient laud surface in 

 the north, which had remained unsubmerged during the whole of the 

 Old Ked Sandstone and Clevedonian periods. That earth-movements 

 of such magnitude over such a wide area should occur at the horizon 

 which marks the faunal break at Bristol, and be indicated by 

 practically the same faunal assemblage at places like Kush and 

 Ingleton, afifords perhaps the best proof of the correctness of the 

 zonal classification employed. 



An investigation of the faunal succession of Ingleborough and 

 the relation of the various zones to the lithological divisions seen in 

 the neighbouring dales is in progress. 



The writer desires to thank Dr. Yaughan for determining the 

 fossils, and for the note on the faunal correlation below. He would 

 also like to express his indebtedness to Mr. W. Robinson, of 

 Sedbergh, for his valuable assistance during the several visits made 

 to the district. 



Note by Arthur Vaughan, B.A., D.Sc, F.G.S. 

 Fauna of the basement beds at Ingleton (Preliminary Notice).* 



Corals. 



Syringopora cf. distans : abundant. 



S. cf. reticulata : common. 



Miclielinia (cf. If. megastoma) : fragmentary. 



Caninia (cf. C. cylindrica, mut. Si) : common. 



Campophyllum (?). 



CyathopliyUntn : abundant. 



Zitlwstrotion cf. Martini : common only on east side of Ingleton Dale. 



L. sp. (compare form common at Giltar, near Tenby). 



Clisiophyllid (cf. Carcinophylhim viendipense) : common. 



Brachiopods. 



Froductus (cf. P. e and P. corrugatxis, mut. C) : abundant but 



fragmentary. 

 Papilionaceous Chonetes : common. 

 Schizophoria resnpinata : one fragment. 

 Bisulcate Spirifer : fragmentary. 

 Spiriferid (? Spiriferina) : fragmentary. 

 Athyris cf. expansa : common. 

 Seminuloid Athyrids : fragmentary. 



1 Before a final opinion can be expressed as to the exact position which these beds 

 occupy in the Avonian sequence, it will he necessary to have several of the corals 

 sliced, and to study the Brachiopod fragments more minutely. I do not, however, 

 anticipate that the' result of such further work will in any way affect the main 

 conclusion which is here stated. 



