Lagerstatte

Australian Jurassic sedimentary and fossil successions: current work and future prospects for marine and non-marine correlation

by Stephen McLoughlin

Turner, S., Bean, L.B., Dettmann, M., McKellar, J.L., McLoughlin, S. & Thulborn, T., 2009: Australian Jurassic sedimentary and fossil successions: current work and future prospects for marine and non-marine correlation. GFF 131, 49–70.

Strata of Jurassic age occur extensively across onshore Australia, but they are predominantly of non-marine origin.... more Strata of Jurassic age occur extensively across onshore Australia, but they are predominantly of non-marine origin. Marine Jurassic strata have only limited onshore exposure in northwestern and central-western Australia, with thick marine sequences lying offshore on the North West Shelf. The richest petroleum province in Australia is located at the shelf’s southern end, where the Dingo Claystone represents an important source rock for oil and gas. By and large, non-marine deposits, including economic coals, are distributed in the eastern states. Jurassic stage boundaries, in the main, are poorly constrained with respect to the Australian sedimentary succession. New work on microfossils, plants, fish, and zircon dating is providing a basis for improved correlation across Australian basins, with overseas successions, and recent international IUGS geologic timescales.

Analysis of fossil bone organic matrix by transmission electron microscopy

by Michel Laurin

DÉCOUVERTE D’UN NOUVEAU GISEMENT DE STÉGOCÉPHALES D’UNE CONSERVATION EXCEPTIONNELLE DANS LE TRIAS D’IN AMENAS (BASSIN D’ILLIZI, ALGÉRIE)

by J.Sébastien Steyer

The Miguasha Fossil-Fish-Lagerstätte: a consequence of the Devonian land–sea interactions

by Richard Cloutier

Authors: Cloutier, R., J.-N. Proust & B. Tessier
Year: 2011
Reference: Palaeobiodiversity and Palaeoenvironments

The evolution of vertebrate assemblages in terms of fluctuating environments has rarely been investigated for the... more The evolution of vertebrate assemblages in terms of fluctuating environments has rarely been investigated for the Devonian period. Variation of biodiversity (richness, abundance and species composition) in the diverse Devonian fish assemblage of the Escuminac Formation (Quebec, Canada) is analysed in response to changes in lithofacies, depositional environment and taphonomy through time. Five sequences within an inner wave-dominated estuary show shifts in continentalisation. Although a ubiquitous fish assemblage is identified throughout the formation, species are more diversified and species composition is better structured during relative sea-level rise than during still-stand and relative sea-level fall. Konservat and Konzentrat Fossil-Lagerstätte horizons occur in the transgressive phase of the sequences.

Konservat-Lagerstätten of the Lancashire Coalfield: exceptional preservation as the norm.

by Lyall Anderson

Anderson, L. I. 1999.The North-West Geologist, 9, 28 – 35.