5 results match your criteria gondwanan glacial

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A dated molecular phylogeny of mite harvestmen (Arachnida: Opiliones: Cyphophthalmi) elucidates ancient diversification dynamics in the Australian Wet Tropics.

Mol Phylogenet Evol 2018 10 21;127:813-822. Epub 2018 Jun 21.

Biology Department, Macalester College, 1600 Grand Avenue, St. Paul, MN 55105, USA. Electronic address:

Austropurcellia, a genus of dispersal-limited arachnids endemic to isolated patches of coastal rainforest in Queensland, Australia, has a remarkable biogeographic history. The genus is a member of the family Pettalidae, which has a classical temperate Gondwanan distribution; previous work has suggested that Austropurcellia is an ancient lineage, with an origin that predates Gondwanan rifting. Subsequently, this lineage has persisted through major climatic fluctuations, such as major aridification during the Miocene and contraction and fragmentation of forest habitats during the Last Glacial Maximum (LGM). Read More

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October 2018

Locked in the icehouse: Evolution of an endemic Epimeria (Amphipoda, Crustacea) species flock on the Antarctic shelf.

Mol Phylogenet Evol 2017 09 18;114:14-33. Epub 2017 May 18.

Royal Belgian Institute of Natural Sciences, OD Taxonomy and Phylogeny, rue Vautier 29, 1000 Brussels, Belgium.

The Antarctic shelf's marine biodiversity has been greatly influenced by the climatic and glacial history of the region. Extreme temperature changes led to the extinction of some lineages, while others adapted and flourished. The amphipod genus Epimeria is an example of the latter, being particularly diverse in the Antarctic region. Read More

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September 2017

Global deglaciation and the re-appearance of microbial matground-dominated ecosystems in the late Paleozoic of Gondwana.

Geobiology 2013 Jul 29;11(4):307-17. Epub 2013 Apr 29.

Department of Geological Sciences, University of Saskatchewan, Saskatchewan, SK, Canada.

The extensive matgrounds in Carboniferous-Permian open-marine deposits of western Argentina constitute an anachronistic facies, because with the onset of penetrative bioturbation during the early Paleozoic microbial mats essentially disappeared from these settings. Abundant microbially induced sedimentary structures in the Argentinean deposits are coincident with the disappearance of trace and body fossils in the succession and with a landward facies shift indicative of transgressive conditions. Deposits of the Late Carboniferous-Early Permian glacial event are well developed in adjacent basins in eastern Argentina, Brazil, South Africa and Antarctica, but do not occur in the western Andean basins of Argentina. Read More

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CO2-forced climate and vegetation instability during Late Paleozoic deglaciation.

Science 2007 Jan;315(5808):87-91

Department of Geology, University of California, Davis, CA 95616, USA.

The late Paleozoic deglaciation is the vegetated Earth's only recorded icehouse-to-greenhouse transition, yet the climate dynamics remain enigmatic. By using the stable isotopic compositions of soil-formed minerals, fossil-plant matter, and shallow-water brachiopods, we estimated atmospheric partial pressure of carbon dioxide (pCO2) and tropical marine surface temperatures during this climate transition. Comparison to southern Gondwanan glacial records documents covariance between inferred shifts in pCO2, temperature, and ice volume consistent with greenhouse gas forcing of climate. Read More

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January 2007

Proceedings of the SMBE Tri-National Young Investigators' Workshop 2005. Southern hemisphere springtails: could any have survived glaciation of Antarctica?

Mol Biol Evol 2006 May 2;23(5):874-82. Epub 2005 Dec 2.

Allan Wilson Centre for Molecular Ecology and Evolution, Massey University, Palmerston North, New Zealand.

Throughout the Southern Hemisphere many terrestrial taxa have circum-Antarctic distributions. This pattern is generally attributed to ongoing dispersal (by wind, water, or migrating birds) or relict Gondwanan distributions. Few of these terrestrial taxa have extant representatives in Antarctica, but such taxa would contribute to our understanding of the evolutionary origins of the continental Antarctic fauna. Read More

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