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TitrePaleobiogeographic significance of Bashkirian (Pennsylvanian) rugose corals from northernmost Ellesmere Island, Arctic Canada
AuteurFedorowski, J; Bamber, E W
SourceGeologica Belgica vol. 15, no. 4, 2012 p. 350-354
Année2012
Séries alt.Secteur des sciences de la Terre, Contribution externe 20110228
ÉditeurGeologica Begica
Documentpublication en série
Lang.anglais
Mediapapier
Formatspdf; html
ProvinceNunavut
SNRC49C; 49F; 49G; 49H; 59C; 59D; 59E; 59F; 59G; 59H; 69; 79; 89A; 89B; 89C; 89D; 89E; 340B; 340C; 340D; 340E; 340F; 120F; 560A; 560B; 560D
Lat/Long OENS-118.0000 -62.0000 83.2500 75.5000
Sujetsassemblages fossiles; distribution de fossiles; fossiles; morphologie des fossiles; paléogéographie; Bassin de Sverdrup ; paléontologie; Paléozoïque; Pennsylvanien
Illustrationslocation maps; stratigraphic sections; photographs
ProgrammeBassin sédimentaire Sverdrup, GEM : La géocartographie de l'énergie et des minéraux
LiensOnline - En ligne
Résumé(disponible en anglais seulement)
The oldest known Carboniferous rugose coral fauna in the Canadian Arctic Islands occurs on the northwestern margin
of the Sverdrup Basin, in the Yelverton Inlet area of northern Ellesmere Island. It was collected from Bashkirian carbonates of the
lower Nansen and Otto Fiord formations and includes representatives of the genera Dibunophyllum Thomson & Nicholson, Lonsdaleia
McCoy, Palaeosmilia Milne-Edwards & Haime and ?Tizraia Said & Rodríguez. Such a combination of genera is unknown elsewhere
above the Serpukhovian and in this sense it is unique in the world. It is typical, however, for coral faunas in the Upper Viséan of Europe,
North Africa and China. In those areas, genera of this assemblage range into the Upper Serpukhovian and individual genera such as
Dibunophyllum in the Donets Basin and Palaeosmilia in Northern Timan and Novaya Zemlya continue into the Lower Bashkirian. The
Yelverton Inlet fauna shows limited similarity to Serpukhovian faunas of several other basins but differs from the Bashkirian faunas
of those basins. It is remarkable because of its unusual taxonomic content, high stratigraphic position, and remote geographic location.
Faunal comparisons suggest Novaya Zemlya as the most likely source for the Yelverton Inlet fauna. Northern Timan may qualify as
another possible source when its Viséan to Bashkirian coral fauna is described in detail.
GEOSCAN ID289318