Fossils from the Celsius Bjerg Group, Late Devonian sequence, East Greenland; significance and sedimentological distribution
J. A. Clack, S. L. Neininger, 2000. "Fossils from the Celsius Bjerg Group, Late Devonian sequence, East Greenland; significance and sedimentological distribution", New Perspectives on the Old Red Sandstone, P. F. Friend, B. P. J. Williams
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Recent collections of fossils from the Upper Devonian sequence of East Greenland have increased our understanding of the origin and evolution of limbed vertebrates (tetrapods). An expedition in 1998 collected additional material to study the faunal and sedimentological context of the vertebrates from the Celsius Bjerg Group. Specimens collected include new, articulated material of ichthyostegids, a skull of the lungfish Jarvikia and the first record of acanthodian spines and scales. Invertebrates were found in these formations for the first time. Vertebrates occur most often in flood-scours, transported from elsewhere and usually disarticulated. Occasionally, more complete specimens occur, which may have been either desiccated before transport or come from more local environments.
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New Perspectives on the Old Red Sandstone
From the 1960s onwards, the Old Red Sandstone of both borders of the Atlantic Ocean has acted as a test-bed for the development of new ideas on the interpretation of fluvial, lacustrine and aeolian sedimentary rocks, and the investigation of tectonically-active basins. Much of the earlier reconnaissance work is now being reviewed in the light of further detailed field study, along with new developments in the understanding of the biostratigraphy, palaeobiology, geochronology, pedogenesis and tectonics.
Three general papers review recent work on the stratigraphical and chronological analysis of the Late Silurian, Devonian and Early Carboniferous strata, and summarize present understanding of the tectonics of the basins. These are then followed by twenty-seven contributions covering new work in Eastern USA, Canada, Ireland, Britain, Norway, Greenland and Spitsbergen.