Conmo Johns — Carboniferous Beds, Ingleton. 321 



lower series of fine conglomerate with well-rolled pebbles of the 

 older grits is interstratified with dark limestone bands, and is 

 succeeded by a very coarse conglomerate with large angular 

 boulders of grit, proving that the old land surface was still 

 undergoing denudation somewhere. No Carboniferous Limestone 

 inclusions were found, though carefully looked for. This would 

 indicate that the older land surface was being progressively 

 submerged. 



Fossils were only collected from the actual basement beds, and 

 from those exposures where their relationship to the older rocks could 

 be made out. Corals and Brachiopods were specially searched for in 

 view of the remarkable success that has attended Dr. Vaughan's 

 adoption of them in his zonal classification ^ of the Lower 

 Carboniferous rocks of the Bristol area. The successful application 

 of the same methods in the Pendine, South Wales,^ Mendips,^ East 

 Derbyshire,* and Eush, co. Dublin,^ made it all the more desirable 

 to commence the investigation of the Yorkshire area north of the 

 Craven faults. 



Corals were found in nearly every exposure, but the Brachiopods 

 were very badly preserved. Nothing but indeterminable fragments 

 were found at Norber or the eastern side of Ingleton Dale. Larger 

 fragments and a few fairly well preserved specimens were obtained 

 from the western side, chiefly from exposures opposite the ' Granite ' 

 Quarry. Fragments of Bellerophon sp. were obtained on both sides 

 of the Dale. Large JEuompTiali were observed in sections near the 

 waterworks. 



It had been stated that a limestone band " with Litliostrotion 

 basaltiforme appears in the conglomerate at Fox Holes. This would 

 seem to be an error. This species was not observed in any of the 

 exposures visited, but as it was seen in the stone walls a search was 

 made at Norber, and it was found plentifully in situ about 125 feet 

 above the basement. 



From Dr. Vaughan's correlation note below it will be seen that 

 the horizon of the Ingleton basement beds is equivalent to the top of 

 the Syringothyris zone and the base of the Seminula zone, or C2 and 

 Si of the Bristol sequence. It corresponds to the break in the faunal 

 succession ' dividing the lower (Clevedonian) from the upper 

 (Kidwellian) there. It also approximates to the time of volcanic 

 activity at Weston.^ The striking conglomerate and very probable 

 unconformity ^ at Pendine in South Wales is of the same age ; while 

 the Rush ^° conglomerate of co. Dublin is also synchronous. Thus 



1 Quart. Journ. Geol. Soc, 1905, p. 181 et seqq. 



2 Summary of Progress, 1904, p. 43. 



3 Quart. Journ. Geol. Soc, 1906, p. 324 et seqq. 

 1 Wedd: Quart. Journ. Geol. Soc, 1906, p. 379, 

 * Quart. Journ. Geol. Soc, 1906, p. 275 et seqq. 

 ® Trans. Leeds Geol. Assoc, part v, p. 26. 



' Quart. Journ. Geol. Soc, 1905, p. 263. 



3 Ibid., p. 250. 



^ Summary oi Progress, 1904, p. 44. 



'0 Quart. Journ. Geol. Soc, 1906, p. 288. 



DECADE V. — VOL. III. — NO. VII. 21 



