The bipolarity of Late Palaeozoic marine faunal distributions: origin, processes and implications for modern global marine biogeography. The fossil record of 'deep-time' ecological processes provides the only tangible tool and material to probe into the dynamics of past biotic responses to global environmental perturbations at a temporal scale extending well beyond the human impact. It is in this context that the project is linked to the National Research Priority Goal 1.5 (Australia's biodivers ....The bipolarity of Late Palaeozoic marine faunal distributions: origin, processes and implications for modern global marine biogeography. The fossil record of 'deep-time' ecological processes provides the only tangible tool and material to probe into the dynamics of past biotic responses to global environmental perturbations at a temporal scale extending well beyond the human impact. It is in this context that the project is linked to the National Research Priority Goal 1.5 (Australia's biodiversity), Goal 1.7 (climate change and variability) and Goal 3.1 (breakthrough new knowledge). In addition, the project will enhance Australia's global research profile through multinational and multidisciplinary research collaborations, and, importantly, also provide a crucial training opportunity for the next generation of Australian palaeobiologists.Read moreRead less
Trace element geochemistry of microbialites: towards an independent record of biogenicity, microbial communities, and seawater chemistry. A vast amount of Australia's mineral wealth is held in rocks of Precambrian age, yet those rocks are notoriously difficult to date and correlate owing to the rarity of fossils. Successful discrimination of different microbialites using biochemically sensitive trace elements will provide a firm basis and rationale for stromatolite biostratigraphy and greatly in ....Trace element geochemistry of microbialites: towards an independent record of biogenicity, microbial communities, and seawater chemistry. A vast amount of Australia's mineral wealth is held in rocks of Precambrian age, yet those rocks are notoriously difficult to date and correlate owing to the rarity of fossils. Successful discrimination of different microbialites using biochemically sensitive trace elements will provide a firm basis and rationale for stromatolite biostratigraphy and greatly increase our ability to understand the geological evolution and distribution of Precambrian rocks and resources. Additionally, a better understanding of the information content of stromatolites will yield considerable insight into the origin of life on Earth and its relationship to Earth's evolving chemistry and environment. Read moreRead less
LATE PALAEOZOIC PALAEOGEOGRAPHY OF CENTRAL ASIA: A PALAEOBIOGEOGRAPHICAL APPROACH USING IMPROVED BIOSTRATIGRAPHY. Fossil data from Central Asia (Afghanistan, Uzbekistan, Pakistan, NW China, Mongolia, Altaids) indicate significant degree of palaeo-latitudinal variation in biogeographical patterns across the Palaeo-Tethys and its flanking shelves during Late Palaeozoic, but details of these patterns and implications for enhancing contemporaneous palaeogeographical models are virtually unknown. Thi ....LATE PALAEOZOIC PALAEOGEOGRAPHY OF CENTRAL ASIA: A PALAEOBIOGEOGRAPHICAL APPROACH USING IMPROVED BIOSTRATIGRAPHY. Fossil data from Central Asia (Afghanistan, Uzbekistan, Pakistan, NW China, Mongolia, Altaids) indicate significant degree of palaeo-latitudinal variation in biogeographical patterns across the Palaeo-Tethys and its flanking shelves during Late Palaeozoic, but details of these patterns and implications for enhancing contemporaneous palaeogeographical models are virtually unknown. This project will analyse the biogeographical patterns of Late Palaeozoic brachiopod, coral, fusulinid faunas using advanced statistical methods, and integrate biogeographical signals with palaeomagnetic data to constrain models for the Late Palaeozoic geological evolution of Central Asia-a vast region that is known to bear enormous potential for natural resources but remains geologically little explored.Read moreRead less
PAST EAST ANTARCTIC ICE SHEET AND GLOBAL SEA-LEVEL VARIATIONS. Unique fossil-bearing, open marine sediments occur inland from the modern Antarctic coastline. These were deposited when a now-glaciated Antarctic basin became a marine embayment, during intervals of significantly reduced ice sheet volume and elevated global sea-level in the past. Urgent palaeontological, sedimentological and geochemical research on these sediments are vital to provide: directly datable in situ evidence for major i ....PAST EAST ANTARCTIC ICE SHEET AND GLOBAL SEA-LEVEL VARIATIONS. Unique fossil-bearing, open marine sediments occur inland from the modern Antarctic coastline. These were deposited when a now-glaciated Antarctic basin became a marine embayment, during intervals of significantly reduced ice sheet volume and elevated global sea-level in the past. Urgent palaeontological, sedimentological and geochemical research on these sediments are vital to provide: directly datable in situ evidence for major ice sheet retreat and global sea-level rise in the past; and quantifiable data concerning the environment during such events; an innovative opportunity to improve predictions of Antarctica's response to global warming and answer international debate about past Antarctic Ice Sheet stability.Read moreRead less
Southern gateways - the icehouse cometh: Eocene to Oligocene evolution of southeast Australia. The 50 to 30 million years old strata of southeastern Australia have great economic importance for Australia. Most of the gas and oil extracted in the region comes from strata of this age. The research will lead to better age constraints on these reserves, thus enhancing petroleum prospectivity in the area. The global environment changes from 50 to 30 million years charted in this project will lead ....Southern gateways - the icehouse cometh: Eocene to Oligocene evolution of southeast Australia. The 50 to 30 million years old strata of southeastern Australia have great economic importance for Australia. Most of the gas and oil extracted in the region comes from strata of this age. The research will lead to better age constraints on these reserves, thus enhancing petroleum prospectivity in the area. The global environment changes from 50 to 30 million years charted in this project will lead to a better understanding of the geological record of greenhouse-icehouse change. Knowledge of the nature of this change in the past is critical to predicting how our climate is going to behave in the future.Read moreRead less
Drying and dying in Australia: extraordinary creatures and climate change 15 million years ago. Australia's globally distinctive mammals were confronted 15 million years ago by a climate plunge from lush greenhouse to dry icehouse conditions. In northern Queensland, in the World Heritage-listed cave known as AL90, fossil-rich deposits span this interval of change. Entombed are dozens of extraordinarily well-preserved skulls and articulated skeletons including a growth series from pouch-young to ....Drying and dying in Australia: extraordinary creatures and climate change 15 million years ago. Australia's globally distinctive mammals were confronted 15 million years ago by a climate plunge from lush greenhouse to dry icehouse conditions. In northern Queensland, in the World Heritage-listed cave known as AL90, fossil-rich deposits span this interval of change. Entombed are dozens of extraordinarily well-preserved skulls and articulated skeletons including a growth series from pouch-young to adults of a rare, possibly sloth-like marsupial as well as more familiar kangaroos, thylacines and bats. Our fossil research will help align Australian records of biotic change with global palaeoclimatic events and provide a benchmark for measuring the nature and rate of environmental and biotic change that continues to transform our nation.Read moreRead less
Time frame for the evolution of Australia's extraordinary mammals. This Project will refine a national biostratigraphic framework integrating growing understanding about the history of Australia's unique mammals, climate change and geological events. Increasing precision in correlating Australia's phylogenetic, palaeoecological and palaeoclimatological events will clarify how these act synergistically to change environments and biodiversity. Increased precision in the biostratigraphic framework ....Time frame for the evolution of Australia's extraordinary mammals. This Project will refine a national biostratigraphic framework integrating growing understanding about the history of Australia's unique mammals, climate change and geological events. Increasing precision in correlating Australia's phylogenetic, palaeoecological and palaeoclimatological events will clarify how these act synergistically to change environments and biodiversity. Increased precision in the biostratigraphic framework will also serve evolutionary genetics which needs age data to calculate molecular rates of divergence, economic geologists needing to know the age of Cainozoic sediments, biologists trying to understand the origins and nature of biodiversity and conservationists using divergence dates and relative branch lengths to help determine conservation priorities. Read moreRead less
Unlocking archives of faunal dispersal and extinction: the key to reconstructing palaeoenvironmental change in Southeast Asia. The influence of environmental change on faunal populations is a pressing issue for Australian communities in environmentally sensitive areas. This will be addressed by documenting how fauna (and humans) in Southeast Asia, our nearest neighbours, responded to environmental challenges. Revealing when humans dispersed through the region and how they adapted will contribute ....Unlocking archives of faunal dispersal and extinction: the key to reconstructing palaeoenvironmental change in Southeast Asia. The influence of environmental change on faunal populations is a pressing issue for Australian communities in environmentally sensitive areas. This will be addressed by documenting how fauna (and humans) in Southeast Asia, our nearest neighbours, responded to environmental challenges. Revealing when humans dispersed through the region and how they adapted will contribute to our understanding of the cultural heritage of Australia's indigenous settlers. This project will develop established Indonesian collaborations, encourage new collaborations with Chinese, Thai, English and Dutch researchers to promote Australian research on a world stage, and pioneer new dating methodologies to enhance Australia's place at the forefront of geochronology.Read moreRead less