Academic literature on the topic 'Trace fossils Australia'

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Journal articles on the topic "Trace fossils Australia"

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Evans, Scott D., Ian V. Hughes, James G. Gehling, and Mary L. Droser. "Discovery of the oldest bilaterian from the Ediacaran of South Australia." Proceedings of the National Academy of Sciences 117, no. 14 (March 23, 2020): 7845–50. http://dx.doi.org/10.1073/pnas.2001045117.

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Analysis of modern animals and Ediacaran trace fossils predicts that the oldest bilaterians were simple and small. Such organisms would be difficult to recognize in the fossil record, but should have been part of the Ediacara Biota, the earliest preserved macroscopic, complex animal communities. Here, we describeIkaria wariootiagen. et sp. nov. from the Ediacara Member, South Australia, a small, simple organism with anterior/posterior differentiation. We find that the size and morphology ofIkariamatch predictions for the progenitor of the trace fossilHelminthoidichnites—indicative of mobility
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Sappenfield, Aaron, Mary L. Droser, and James G. Gehling. "Problematica, trace fossils, and tubes within the Ediacara Member (South Australia): redefining the ediacaran trace fossil record one tube at a time." Journal of Paleontology 85, no. 2 (March 2011): 256–65. http://dx.doi.org/10.1666/10-068.1.

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Ediacaran trace fossils are becoming an increasingly less common component of the total Precambrian fossil record as structures previously interpreted as trace fossils are reinterpreted as body fossils by utilizing qualitative criteria. Two morphotypes, Form E and Form F of Glaessner (1969), interpreted as trace fossils from the Ediacara Member of the Rawnsley Quartzite in South Australia are shown here to be body fossils of a single, previously unidentified tubular constructional morphology formally described herein as Somatohelix sinuosus n. gen. n. sp. S. sinuosus is 2-7 mm wide and 3-14 cm
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Kakuwa, Yoshitaka, and James D. Floyd. "Trace fossils in Ordovician radiolarian chert successions in the Southern Uplands, Scotland." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 107, no. 1 (March 2016): 13–22. http://dx.doi.org/10.1017/s1755691017000044.

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ABSTRACTRadiolarian chert and associated siliceous claystone in the Southern Uplands of Scotland are examined, in order to study the Great Ordovician Biodiversification Event of benthic animals on the pelagic ocean bottom. Trace fossils which are uncommon, but convincing, are found in the grey chert and siliceous claystone of Gripps Cleuch. These observations constitute firm evidence that large benthic animals which could leave visible trace fossils had colonised the Iapetan Ocean by the late Middle Ordovician, confirming previous studies from Australia for Panthalassa, the other huge ocean. R
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Bell, Phil R., Russell D. C. Bicknell, and Elizabeth T. Smith. "Crayfish bio-gastroliths from eastern Australia and the middle Cretaceous distribution of Parastacidae." Geological Magazine 157, no. 7 (October 30, 2019): 1023–30. http://dx.doi.org/10.1017/s0016756819001092.

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AbstractFossil crayfish are typically rare, worldwide. In Australia, the strictly Southern Hemisphere clade Parastacidae, while ubiquitous in modern freshwater systems, is known only from sparse fossil occurrences from the Aptian–Albian of Victoria. We expand this record to the Cenomanian of northern New South Wales, where opalized bio-gastroliths (temporary calcium storage bodies found in the foregut of pre-moult crayfish) form a significant proportion of the fauna of the Griman Creek Formation. Crayfish bio-gastroliths are exceedingly rare in the fossil record but here form a remarkable supp
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Trewin, N. H., and K. J. McNamara. "Arthropods invade the land: trace fossils and palaeoenvironments of the Tumblagooda Sandstone (?late Silurian) of Kalbarri, Western Australia." Transactions of the Royal Society of Edinburgh: Earth Sciences 85, no. 3 (1994): 177–210. http://dx.doi.org/10.1017/s026359330000359x.

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AbstractThe trace fossils of the Tumblagooda Sandstone (?late Silurian) of Kalbarri, Western Australia are spectacular in their variety and preservation. They provide a unique insight into the activities of the early invaders of terrestrial environments, and reveal the presence of a diverse fauna dominated by arthropods. Within the Formation trace fossil assemblages can be related to fluvial, aeolian and marine sand-dominated environments. Two distinct and diverse ichnofaunas are recognised.The Heimdallia–Diplichnites Ichnofauna occurs in sandstones deposited in broad low sinuosity braided flu
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Camens, Aaron B., Stephen P. Carey, and Lee J. Arnold. "Vertebrate Trace Fossils from the Late Pleistocene of Kangaroo Island, South Australia." Ichnos 25, no. 2-3 (July 11, 2017): 232–51. http://dx.doi.org/10.1080/10420940.2017.1337633.

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Schroeder, Natalie I., John R. Paterson, and Glenn A. Brock. "Eldonioids with associated trace fossils from the lower Cambrian Emu Bay Shale Konservat-Lagerstätte of South Australia." Journal of Paleontology 92, no. 1 (January 2018): 80–86. http://dx.doi.org/10.1017/jpa.2018.6.

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AbstractRare specimens of eldonioids recovered from the lower Cambrian (Series 2, Stage 4) Emu Bay Shale (EBS) Konservat-Lagerstätte represent the first record of the group for the Cambrian of East Gondwana. The disc-shaped body of the EBS taxon bears fine concentric corrugations on the dorsal surface and, ventrally, a series of internal lobes that have primary and secondary bifurcations, as well as a coiled sac. It appears to be most similar toRotadiscusandPararotadiscusof the Cambrian Chengjiang and Kaili biotas of South China, respectively. While the structure of the internal lobes would in
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Kakuwa, Y., and J. Webb. "Evolution of Cambrian to Ordovician trace fossils in pelagic deep-sea chert, Australia." Australian Journal of Earth Sciences 57, no. 5 (July 2010): 615–25. http://dx.doi.org/10.1080/08120099.2010.494766.

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Shi, G. R., Yi-Ming Gong, and A. Potter. "Late Silurian trace fossils from the Melbourne Formation, Studley Park, Victoria, southeastern Australia." Alcheringa: An Australasian Journal of Palaeontology 33, no. 3 (September 2009): 185–209. http://dx.doi.org/10.1080/03115510902844301.

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Bengtson, Stefan, Birger Rasmussen, Jian-Wei Zi, Ian R. Fletcher, James G. Gehling, and Bruce Runnegar. "Eocene animal trace fossils in 1.7-billion-year-old metaquartzites." Proceedings of the National Academy of Sciences 118, no. 40 (September 27, 2021): e2105707118. http://dx.doi.org/10.1073/pnas.2105707118.

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The Paleoproterozoic (1.7 Ga [billion years ago]) metasedimentary rocks of the Mount Barren Group in southwestern Australia contain burrows indistinguishable from ichnogenera Thalassinoides, Ophiomorpha, Teichichnus, and Taenidium, known from firmgrounds and softgrounds. The metamorphic fabric in the host rock is largely retained, and because the most resilient rocks in the sequence, the metaquartzites, are too hard for animal burrowing, the trace fossils have been interpreted as predating the last metamorphic event in the region. Since this event is dated at 1.2 Ga, this would bestow advanced
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Dissertations / Theses on the topic "Trace fossils Australia"

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Thomson, A. J. "Lower Cambrian trace fossils of the Amadeus Basin, central Australia /." Title page, abstract and contents only, 1992. http://web4.library.adelaide.edu.au/theses/09SB/09sbt482.pdf.

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Baghiyan-Yazd, Mohammad Hassan. "Palaeoichnology of the terminal Proterozoic-Early Cambrian transition in central Australia : interregional correlation and palaeoecology." Title page, table of contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phb1445.pdf.

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Lepot, Kevin. "Recherche et caractérisation de traces fossiles d'activité microbienne archéenne (Pilbara Drilling Project, Australie)." Paris, Institut de physique du globe, 2007. http://www.theses.fr/2007GLOB0007.

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Les stromatolites, dépôts carbonatés aux morphologies singulières, sont parmi les plus notables Archéenne (2,5 à 4 milliards d'années). Si on sait que de tels dépôts se forment sous l'influence de tapis microbiens dans lesenvironnements modernes, l'origine biologique des stromatolites "fossiles"Archéensreste débattue. L'utilisation de techniques de microscopie et spectroscopie de haute résolution a permis d'étudier la matière organique et les minéraux associés directement au sein de la roche jusqu'à l'échelle du nanomètre. Cette étude a révélé la présence de globules de matière organique évoqu
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Kinuthia, Wanyee. "“Accumulation by Dispossession” by the Global Extractive Industry: The Case of Canada." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30170.

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This thesis draws on David Harvey’s concept of “accumulation by dispossession” and an international political economy (IPE) approach centred on the institutional arrangements and power structures that privilege certain actors and values, in order to critique current capitalist practices of primitive accumulation by the global corporate extractive industry. The thesis examines how accumulation by dispossession by the global extractive industry is facilitated by the “free entry” or “free mining” principle. It does so by focusing on Canada as a leader in the global extractive industry and the spr
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Baghiyan-Yazd, Mohammad Hassan. "Palaeoichnology of the terminal Proterozoic-Early Cambrian transition in central Australia : interregional correlation and palaeoecology / Mohammad Hassan Baghiyan-Yazd." Thesis, 1998. http://hdl.handle.net/2440/21668.

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Books on the topic "Trace fossils Australia"

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Johansen, Bruce, and Adebowale Akande, eds. Nationalism: Past as Prologue. Nova Science Publishers, Inc., 2021. http://dx.doi.org/10.52305/aief3847.

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Nationalism: Past as Prologue began as a single volume being compiled by Ad Akande, a scholar from South Africa, who proposed it to me as co-author about two years ago. The original idea was to examine how the damaging roots of nationalism have been corroding political systems around the world, and creating dangerous obstacles for necessary international cooperation. Since I (Bruce E. Johansen) has written profusely about climate change (global warming, a.k.a. infrared forcing), I suggested a concerted effort in that direction. This is a worldwide existential threat that affects every living t
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Book chapters on the topic "Trace fossils Australia"

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Kakuwa, Yoshitaka, and John Webb. "Trace Fossils of a Middle to Upper Ordovician Pelagic Deep-Ocean Bedded Chert in Southeastern Australia." In Sediment–Organism InteractionsA Multifaceted Ichnology. SEPM Society for Sedimentary Geology, 2007. http://dx.doi.org/10.2110/pec.07.88.0267.

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Conference papers on the topic "Trace fossils Australia"

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Martin, Tony, Melissa Lowery, Michael Hall, Thomas H. Rich, Steven Morton, Lesley Kool, Peter Swinkels, and Patricia Vickers-Rich. "CRETACEOUS POLAR ARTHROPODS ON WALKABOUTS: NEWLY DISCOVERED ARTHROPOD TRACE FOSSILS FROM THE WONTHAGGI FORMATION (BARREMIAN), VICTORIA, AUSTRALIA." In GSA Connects 2021 in Portland, Oregon. Geological Society of America, 2021. http://dx.doi.org/10.1130/abs/2021am-364259.

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