About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
CSPG Bulletin
Abstract
Ganoid Fish Albertonia Sp. from the Lower Triassic Montney Formation, Western Canada Sedimentary Basin
ABSTRACT
A remarkable core example of the Early Triassic ganoid fish Albertonia sp. has been discovered on a bedding plane in core in the Lower Triassic Montney Formation of Alberta. It matches very closely examples of the same species of fish recovered from outcrop in the time-equivalent Vega-Phroso Siltstone Member of the Sulphur Mountain Formation near Wapiti Lake in British Columbia. Albertonia is a member of the ganoid fish family Parasemionotidae, which is amongst the most advanced and abundant of Triassic subholostean families of fish. These fish were planktonic or deep-water in habitat and, together with other fish species identified from Wapiti Lake, may have indicated that bottom water conditions were anoxic.
RESUME
Un exemple remarquable de carotte du poisson ganoid Albertonia sp. du Triassique precoce a ete decouvert dans une carotte de plan de stratification de la Formation Montney du Triassique inferieur de l'Alberta. Il correspond de tres pres a des exemples de ces memes especes de poissons recuperees dans des affleurements de la meme periode que le Membre Vega-Phroso Siltstone de la Formation Sulphur Mountain pres de Wapiti Lake en Colombie-Britannique. Albertonia est membre de la famille des poissons ganoids des Parasemionotidae faisant partie des familles de poisson subholosteens les plus avancees et abondantes. Ces poissons etaient planktoniques ou habitaient en eau profonde et avec d'autres especes de poissons identifiees de Wapiti Lake, peuvent avoir indiques que les conditions du fond de l'eau etaient depourvues d'oxygene.
Traduit par Marie-Louise Tomas
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |