- Trempealeauan
- тремпелионский ярус (верхнего кембрия)
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Ellesmerocerida — Taxobox name = Ellesmerocerida fossil range = U Cambrian Ordovician regnum = Animalia phylum = Mollusca classis = Cephalopoda subclassis = Nautiloidea ordo = Ellesmerocerida ordo authority = Flower 1950 The Ellesmerocerida comprise early… … Wikipedia
Clarkoceras — Temporal range: Late Cambrian– Early Ordovician … Wikipedia
Cambrian — For other uses, see Cambrian (disambiguation). Cambrian Period 542–488.3 million years ago … Wikipedia
Gasconadian Stage — The Gasconadian Stage is the first stage of the Ordovician geologic period in North America and of the Lower Ordovician Canadian Epoch, coming immediately after the Late Cambrian Trempealeauan and preceding the middle Canadian Demingian. The… … Wikipedia