The marine and terrestrial palynology of the Middle Jurassic Wanaea verrucosa Zone from the Perseus-3A, Sunrise-2 and Sunset West-1 wells of the North West Shelf of Australia was studied in detail. These three wells represent brackish and shallow marine successions from the Northern Carnarvon and Bonaparte basins respectively. The palynological data derived from these three wells constitute the basis for the formal definition of this important dinoflagellate cyst biozone and its three constituent subzones. The base of the Lower Wanaea verrucosa Subzone is defined by the inception of the index species and is a relatively sparse, low diversity microphytoplankton assemblage; species richness increases up-section. The base of the succeeding Middle Wanaea verrucosa Subzone is defined by the range base of Valvaeodinium spinosum, and the Upper Wanaea verrucosa Subzone is defined by the incoming of the large and distinctive species Endoscrinium kempiae. Other stratigraphically-important datums include the inceptions of ?Bradleyella adela in the lower subzone, Leptodinium spp. and Wanaea lacuna in the middle subzone, and Endoscrinium spp. and Ternia balmei within the upper subzone. Important range tops include Mancodinium semitabulatum and Phallocysta granosa in the middle subzone, and Nannoceratopsis deflandrei in the upper subzone. These and other datums are compared with European ranges to assign a Late Bajocian to Early Bathonian age to the Wanaea verrucosa Zone.

This CD-ROM consists of 15 images and explanatory text detailing the nature of dinosaur fossils from Southern Australia as determined by scientists working along Australia's southeast coast. Find out about the dinosaurs that lived at polar latitudes between 120 to 110 million years ago and the fascinating methods they developed to cope with the climate of that region. The images include actual fossils discovered and reconstructions of dinosaurs and the plants and animals with which these dinosaurs were associated. Suitable for primary Years 5-6 an secondary Years 7-12.

2004 updated version of Helby, Morgan & Partridge (1987)

This collection consists of type specimens, illustrated or referred specimens which have been published in the scientific literature. Type specimens that have been published in literature of a wide variety of different macro and micro fossils. The Commonwealth Palaeontological Collection is a collection of type, illustrated referred or cited specimens of fossils which have been published in the scientific literature. This Collection was initiated by Federal Cabinet decision during the 1920s. When fossil specimens of any new species of animal or plant are found, for it to be of any future use in biostratigraphy, it of course must be analysed.

Diatom assemblages in sandy deposits of the 2004 tsunami at Phra Thong Island, Thailand may provide clues to flow conditions during the tsunami. The tsunami deposits contain one or more beds that fine upward, commonly from medium sand to silty very fine sand. Diatom assemblages of the lowermost portion of the deposit predominantly comprise of unbroken beach and subtidal species that live attached to sand grains. The dominant taxa shift to marine plankton species in the middle of the bed and to a mix of freshwater, brackish, and marine species near the top. These trends are consistent with expected changes in current velocities of tsunami through time. During high current velocities, medium sand is deposited; only beach and subtidal benthic diatoms attached to sediment can be incorporated into the tsunami deposit. High shear velocity keeps finer material, including planktonic diatoms in suspension. With decreasing current velocities, finer material including marine plankton can be deposited. Finally, during the lull between tsunami waves, the entrained freshwater, brackish, and marine species settle out with mud and plant trash. Low numbers of broken diatoms in the lower medium sand implies rapid entrainment and deposition, whilst selective breakage of marine plankton (Thalassionema nitzschioides, and Thalassiosira and Coscinodiscus spp.) in the middle portion of the deposit probably results from abrasion in the turbulent current before deposition.

<p><b> Please note: This record has been made available internally for reference only</b> <p>PIMS is a search tool for discovery of survey and well data assets and physical samples held by the Geoscience Australia Repository. Data can be ordered and viewing of samples can be arranged via an online form. Although this is public data, fees are charged to cover the cost of transcription and delivery.

The 3D Models Bulk Set includes a class set of each of the following 3D paper models; - Nautiloid - Trilobite - Pterosaur - Triceratops - Volcano - Plate Tectonics Globe - Landslide - Slump

This set consists of 15 slides and explanatory text detailing the nature of dinosaur fossils from Southern Australia, as determined by scientists working along Australia's southeast coast. Find out about the dinosaurs that lived at polar latitudes between 120 to 110 million years ago and the fascinating methods they developed to cope with the climate of that region. The images include actual fossils discovered and reconstructions of dinosaurs and the plants and animals with which these dinosaurs were associated. Also available on CD-ROM (catalogue item 39797) Suitable for primary Years 5-6 and secondary Years 7-12.

Learn about studying fossils (palaeontology) in this behind-the-scenes visit to the Commonwealth Palaeontological Collection. The formation of fossils is explained and different types of fossils are shown. The collection contains thousands of specimens including microscopic organisms called Foraminifera. Viewers learn that there are many scientific uses of fossils and this collection is a resource that scientists continue to study today.

This document is a professional opinion, presenting an assessment of the macrofossils present in well CKAD0001, located in the Northern Territory in the Georgina Basin.