A reassessment of paleogeographic reconstructions of eastern Gondwana: Bringing geology back into the equation

White, L.B.; Gibson, Gary; Lister, Gordon

doi:10.1016/j.gr.2013.06.009

Cited by 101 publications

(79 citation statements)

References 68 publications

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“…Phase 2 rifting lasted from 100 to 72 Ma (Ball et al 2013), with initial seafloor spreading beginning at ϳ84 Ma (White et al 2013). Spreading was slow until 45 Ma, with rapid northward movement after this time.…”

Section: Northward Drift Of Australiamentioning

confidence: 99%

Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective

2016

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Non-collisional, convergent margin orogens are generally called accretionary orogens, although there may not have been horizontal accretion across the plate boundary. We revive the term non-collisional orogen and use a Gondwanaland perspective to discuss different types. On the northern margin of the Australian Plate, the New Guinea non-collisional, accretionary orogen was formed by large-scale terrane accretion across an advancing plate margin. On the eastern margin, the Southwest Pacific Orogen is a non-collisional and non-accretionary orogen, involving virtually no horizontal transfer of material across its eastward-retreating plate boundary. In the Tasmanides, the Lachlan Orogen, commonly described as an accretionary orogen, is another non-collisional, non-accretionary orogen developed behind the plate margin after major Cambrian rollback, with resultant backarc basins filled mainly by quartz-rich turbidites subsequently recycled. The outboard New England Orogen is a non-collisional but accretionary orogen, marked by the frontal accretion of continental margin arc detritus, subsequently recycled into younger arcs. The Permian to Cretaceous Rangitata Orogen of New Zealand is an ?oblique non-collisional, accretionary orogen in which Permian-Triassic sediments of the accretionary wedge have no link with inboard (near) arc terranes. Late Jurassic to Cretaceous parts were sourced by a combination of first cycle volcanogenic detritus passing through the forearc basin together with recycling of the exhumed parts of the wedge. All non-collisional orogens involve continental growth, but only the New England Orogen and to a lesser extent the New Guinea Orogen involve significant crustal growth.

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Section: Northward Drift Of Australiamentioning

confidence: 99%

Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective

2016

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“…Therefore, our results speak for a Gondwanan origination of Siphonaptera, as proposed previously by other researchers (Medvedev, 2000a,b). Australia and South America remained terrestrially connected via Antarctica until the late Eocene according to recent estimations (Scher and Martin, 2006;Stickley et al, 2004;Upchurch, 2008;White et al, 2013), permitting an exchange of flea fauna between the two emerging continents. This hypothesis is also supported by divergence time estimates in lineage 2 (Fig.…”

Section: Biogeography Supports a Gondwanan Originmentioning

confidence: 99%

Fleas (Siphonaptera) are Cretaceous, and evolved with Theria

Zhu

Hastriter

Whiting

et al. 2015

Molecular Phylogenetics and Evolution

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Fleas (order Siphonaptera) are highly-specialized, diverse blood-feeding ectoparasites of mammals and birds with an enigmatic evolutionary history and obscure origin. We here present a molecular phylogenetic study based on a comprehensive taxon sampling of 259 flea taxa, representing 16 of the 18 extant families of this order. A Bayesian phylogenetic tree with strong nodal support was recovered, consisting of seven sequentially derived lineages with Macropsyllidae as the earliest divergence, followed by Stephanocircidae. Divergence times of flea lineages were estimated based on fossil records and host specific associations to bats (Chiroptera), suggesting that the common ancestor of extant Siphonaptera diversified during the Cretaceous. However, most of the intraordinal divergence into extant lineages took place after the K-Pg boundary. Ancestral states of host association and biogeographical distribution were reconstructed, suggesting with high likelihood that fleas originated in the southern continents (Gondwana) and migrated from South America to their extant distributions in a relatively short time frame. Theria (placental mammals and marsupials) represent the most likely ancestral host group of extant Siphonaptera, with marsupials occupying a more important role than previously assumed. Major extant flea families evolved in connection to post K-Pg diversification of Placentalia. The association of fleas with monotremes and birds is likely due to later secondary host association. These results suggest caution in casually interpreting recently discovered Mesozoic fossil "dinosaur fleas" of Northeast Asia as part of what we currently consider Siphonaptera.

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“…During the last few decades a large number of studies have attempted to correlate and reassemble the continental blocks of mainland southeastern Australia, Tasmania and Antarctica (Sproll and Dietz, 1969;Baillie, 1985;Li et al, 1997;Boger and Miller, 2004;Cawood, 2005;Cayley, 2011;Gibson et al, 2011;White et al, 2013); however, the position of Tasmania in Cambrian reconstructions remains controversial. A diverse range of techniques have so far been exploited to infer information on crustal structure and composition beneath Bass Strait, mainly in studies focusing on similarities recognised in the geology (Crawford and Berry, 1992;Powell and Baillie, 1992;Reed, 2001;Cayley, 2011) and in geophysical, geochemical and other types of data in Tasmania and/or mainland Australia.…”

Section: Introductionmentioning

confidence: 99%

Linking mainland Australia and Tasmania using ambient seismic noise tomography: Implications for the tectonic evolution of the east Gondwana margin

et al. 2015

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A reassessment of paleogeographic reconstructions of eastern Gondwana: Bringing geology back into the equation

Cited by 101 publications

References 68 publications

Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective

Different styles of modern and ancient non-collisional orogens and implications for crustal growth: a Gondwanaland perspective

Fleas (Siphonaptera) are Cretaceous, and evolved with Theria

Linking mainland Australia and Tasmania using ambient seismic noise tomography: Implications for the tectonic evolution of the east Gondwana margin

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