Review and clarification of Bungonibeyrichia Copeland, 1981 (Ostracoda) from the upper Silurian–Lower Devonian of New South Wales, Australia

2017 ◽  
Vol 41 (3) ◽  
pp. 397-402 ◽  
Author(s):  
Tamara T.A. Camilleri ◽  
Mark T. Warne ◽  
David J. Holloway
1992 ◽  
Vol 129 (6) ◽  
pp. 709-721 ◽  
Author(s):  
Barry G. Fordham

AbstractThree available graphic-correlation analyses are used to calibrate mid-Palaeozoic conodont zonations: Sweet's scheme for the mid- to Upper Ordovician; Kleffner's for the mid- to Upper Silurian; and Murphy & Berry's for the lower and middle Lower Devonian. The scheme of Sweet is scaled by applying the high-precision U-Pb zircon date of Tucker and others for the Rocklandian and linked with that of Kleffner by scaling the graptolite sequence of the Ordovician-Silurian global stratotype section to fit two similarly derived dates from this sequence. The top of Kleffner's scheme, all of Murphy & Berry's, as well as standard zones to the Frasnian are calibrated by using tie-points of the latest Cambridge-BP time-scale (GTS 89). However, the recent microbeam zircon date by Claoué-Long and others for the Hasselbachtal Devonian-Carboniferous auxiliary stratotype is used to calibrate the standard Famennian zones. Also the similarly derived but preliminary determination reported by Roberts and others from the Isismurra Formation of New South Wales is tentatively taken as the top of the Tournaisian and so used to calibrate Tournaisian zones. Despite the considerable extrapolation required to compile these schemes and their inherent errors, the resultant time-scale closely agrees with other dates of Tucker and others from the Llanvirn as well as the GTS 89 Homerian-Gorstian tie-point. This suggests that stratigraphic methods can be usefully applied to geochronometry. The Llandovery appears to have lasted longer (16 m. y.) than usually envisaged and the Ordovician-Silurian boundary may need to be lowered to approximately 443.5 Ma. Certainly, chrons varied widely in duration and further stratigraphic studies to estimate their relative durations as well as high-resolution dating for their calibration will be crucial to more accurate biochronometries.


1937 ◽  
Vol 74 (4) ◽  
pp. 145-153 ◽  
Author(s):  
Dorothy Hill

In this paper is given a revision of all but one of the corals in the Rev. W. B. Clarke's first collection of fossils from New South Wales; the collection was placed by him in the Woodwardian Museum at Cambridge in 1844, and was described by M'Coy (1847). The types are still preserved at the Sedgwick Museum, Cambridge. A description is also given of the holotype of Amplexus arundinaceus Lonsdale, which was collected from New South Wales by Strzelecki in 1842, and is now in the British Museum (Natural History), London. The species are distributed as follows: 1? Permian, 1 Lower Carboniferous, 1 Devonian, and 1 Silurian or Lower Devonian.


1999 ◽  
Vol 73 (3) ◽  
pp. 431-436 ◽  
Author(s):  
Malte C. Ebach ◽  
Gregory D. Edgecombe

The genus Cordania Clarke, 1892, has been known from the Lower Devonian (Lochkovian-Pragian) of the Appalachian Province and apparently from the Lower-Middle Devonian of China. Probable Lochkovian strata of the Biddabirra Formation in the Amphitheatre Group from near Cobar, New South Wales, Australia, have yielded Cordania buicki new species, extending the range of the genus to eastern Australia. Cladistic analysis of Cordania identifies C. buicki as more closely related to species from Oklahoma than to a northern Appalachian grade.


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