Proceedings of the Yorkshire Geological Society, Volume 16

abundant Ammonites anticlinal Austwick B.Sc Bala bands base Basement Bed black shales Brachiopods Bradford breccia Bunter calcareous Carboniferous Limestone Carboniferous rocks Castletown Chapel-le-Dale character characterised Chonetes Clitheroe Colne corals Craven crinoidal Cyathophyllum Dale deposits Derbyhaven Dibunophyllum district drift DWERRYHOUSE examined Excursion exposed exposures faults fauna feet flaggy fold fossiliferous fossils fragments Genus Geol giganteus Gill glacial Graptolitic gravel Halifax Hall Headingley Hill horizon Horton Flags Ingleborough Ingleton Ingletonian Kendall Keuper knolls Lamplugh Leeds lime limestones and shales Lithostrotion Lower Carter masses Millstone Grit Mountain Limestone Mudstone occur Pateley Bridge pebbles Pendle Pendleside series Plate Poolvash Posidonomya Becheri Proc Productus Professor quarry quartz quartzite Road sand Sandstone Scarlet seen shales Sheffield shell side Silurian species specimens Speeton stones strata Studfold Syringopora thickness thin upper valley well-bedded Wheelton Hind Wolds Worsaw York Yorkshire Geological Society Zaphrentis Enniskilleni zone