Sometimes referred to in literature as 'Bwlch y Gaseg' and in very close proximity to the area named as such on OS Map (six-inch to the mile) 1888-1913,[1] the Cynwyd Forest Quarry is a Site of Special Scientific Interest (SSSI)[2] located aside a track within the Cynwyd Forest near Corwen , Denbighshire, North Wales. It was described by Rushton et al. (2000)[3] and exposes Late Ordovician micaceous siltstones and mudstones of the Dolhir Formation (Ashgill Series, Rawtheyan Stage) which yields a rich shelly (brachiopod) fauna. Trilobites are represented by several genera although the fauna is dominated by Gravicalymene arcuata Price, 1982.[4]Bivalves, bryozoans and various Echinodermata (Crinoids and Cystoids) are also present. Examples of most of the fossils listed below are illustrated and briefly described (or remarked upon) in "Fossils of the Upper Ordovician" by Harper and Owen (Eds.).[5]
^RUSHTON, A. W. A., OWEN, A. W., OWENS R. M. and PRIGMORE J. K. 2000. Cambrian to Ordovician stratigraphy. Joint Nature Conservation Council Peterborough, xxi + 435 pp. [dated 1999]
^PRICE, D. 1982. Calymene quadrata King, 1923 and allied species of trilobites from the Ashgill Series of North Wales. Geological Magazine, Volume 119 , Issue 1 , January 1982, pp. 57 - 66. DOI: https://doi.org/10.1017/S0016756800025656
^HARPER, D. A. T. and OWEN, A. W. (Eds.) 1996. Fossils of the Upper Ordovician. Palaeontological Association Field Guide to Fossils Volume: 7, 312 pages, 52 plates with b/w photos; 34 b/w photos and b/w line drawings.
cynwyd, forest, quarry, sometimes, referred, literature, bwlch, gaseg, very, close, proximity, area, named, such, inch, mile, 1888, 1913, site, special, scientific, interest, sssi, located, aside, track, within, cynwyd, forest, near, corwen, denbighshire, nort. Sometimes referred to in literature as Bwlch y Gaseg and in very close proximity to the area named as such on OS Map six inch to the mile 1888 1913 1 the Cynwyd Forest Quarry is a Site of Special Scientific Interest SSSI 2 located aside a track within the Cynwyd Forest near Corwen Denbighshire North Wales It was described by Rushton et al 2000 3 and exposes Late Ordovician micaceous siltstones and mudstones of the Dolhir Formation Ashgill Series Rawtheyan Stage which yields a rich shelly brachiopod fauna Trilobites are represented by several genera although the fauna is dominated by Gravicalymene arcuata Price 1982 4 Bivalves bryozoans and various Echinodermata Crinoids and Cystoids are also present Examples of most of the fossils listed below are illustrated and briefly described or remarked upon in Fossils of the Upper Ordovician by Harper and Owen Eds 5 Cynwyd Forest Quarry 20 July 2021 Cynwyd Forest QuarrySite of Special Scientific InterestLocation within WalesLocationDenbighshireGrid referenceSJ 09135 39969Coordinates52 56 58 N 3 21 14 W 52 94938 N 3 3538238 W 52 94938 3 3538238InterestGeology PalaeontologyArea0 18 haNotification16 May 1983 Contents 1 Fossils include 2 Gallery 3 References 4 See alsoFossils include edit nbsp Gravicalymene arcuata Price 1982 Bryozoa Pinnatoporella carinata Etheridge Phylloporina sp Graptodictya sp Brachiopoda Leptaena sp Cephalopoda Zitteloceras costatum Teichert Trilobita Gravicalymene arcuata Price Illaenus Parillaenus davisii Salter Remopleurides cf nicholsoni Reed Pseudospaerexochus cf conformis Angelin Pseudospaerexochus octolobatus McCoy Calyptaulax sp Tretaspis sp Crinoidea Cupulocorona rugosa Donovan and Paul Cystoidea Regulaecystis inconstans PaulGallery edit nbsp Cynwyd Forest Quarry photo taken July 20 2021 nbsp Cynwyd Forest Quarry 20 July 2021 References edit Bwlch y Gaseg Recorded name Historic Place Names historicplacenames rcahmw gov uk Retrieved 24 August 2021 County search of SSSIs Countryside Council for Wales Archived from the original on 5 March 2014 Retrieved 24 August 2012 RUSHTON A W A OWEN A W OWENS R M and PRIGMORE J K 2000 Cambrian to Ordovician stratigraphy Joint Nature Conservation Council Peterborough xxi 435 pp dated 1999 PRICE D 1982 Calymene quadrata King 1923 and allied species of trilobites from the Ashgill Series of North Wales Geological Magazine Volume 119 Issue 1 January 1982 pp 57 66 DOI https doi org 10 1017 S0016756800025656 HARPER D A T and OWEN A W Eds 1996 Fossils of the Upper Ordovician Palaeontological Association Field Guide to Fossils Volume 7 312 pages 52 plates with b w photos 34 b w photos and b w line drawings See also editList of Sites of Special Scientific Interest in Clwyd nbsp This article about a Site of Special Scientific Interest is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Cynwyd Forest Quarry amp oldid 1115697492, wikipedia, wiki, book, books, library,
