Early palaeozoic palaeomagnetism in Australia I. Cambrian results from the Flinders Ranges, South Australia II. Late Early Cambrian results from Kangaroo Island, South Australia III. Middle to early-Late Cambrian results from the Amadeus Basin, Northern Territory

1980 ◽  
Vol 64 (3-4) ◽  
pp. 249-332 ◽  
Author(s):  
C.T. Klootwijk
Keyword(s):  
South Australia ◽  
Northern Territory ◽  
Early Cambrian ◽  
Late Cambrian ◽  
Flinders Ranges ◽  
Early Palaeozoic ◽  
Early Late

scholarly journals A new early Cambrian bradoriid (Arthropoda) assemblage from the northern Flinders Ranges, South Australia

2014 ◽  
Vol 25 (1) ◽  
pp. 420-437 ◽  
Author(s):  
Marissa J. Betts ◽  
Timothy P. Topper ◽  
James L. Valentine ◽  
Christian B. Skovsted ◽  
John R. Paterson ◽  
...  
Keyword(s):  
South Australia ◽  
Early Cambrian ◽  
Flinders Ranges

Finding Australian Birds

2014 ◽  
Author(s):  
Tim Dolby ◽  
Rohan Clarke
Keyword(s):  
South Australia ◽  
Northern Territory ◽  
The Other ◽  
Australian Species ◽  
Flinders Ranges ◽  
South West ◽  
Bird Watching ◽  
Australian Birds ◽  
Temperate Woodlands ◽  
International Visitors

Finding Australian Birds is a guide to the special birds found across Australia's vastly varied landscapes. From the eastern rainforests to central deserts, Australia is home to some 900 species of birds. This book covers over 400 Australian bird watching sites conveniently grouped into the best birding areas, from one end of the country to the other. This includes areas such as Kakadu in the Top End and rocky gorges in the central deserts of the Northern Territory, the Great Barrier Reef in Queensland, rainforests distributed along the eastern Australian seaboard, some of the world's tallest forests in Tasmania, the Flinders Ranges and deserts along the iconic Strzelecki and Birdsville Tracks in South Australia, and the mallee temperate woodlands and spectacular coastlines in both Victoria and south west Western Australia. Each chapter begins with a brief description of the location, followed by a section on where to find the birds, which describes specific birdwatching sites within the location's boundaries, and information on accommodation and facilities. The book also provides a comprehensive 'Bird Finding Guide', listing all of Australia's birds with details on their abundance and where exactly to see them. Of value to both Australian birdwatchers and international visitors, this book will assist novices, birders of intermediate skill and keen 'twitchers' to find any Australian species.

scholarly journals Early Cambrian record of failed durophagy and shell repair in an epibenthic mollusc

2007 ◽  
Vol 3 (3) ◽  
pp. 314-317 ◽  
Author(s):  
Christian B Skovsted ◽  
Glenn A Brock ◽  
Anna Lindström ◽  
John S Peel ◽  
John R Paterson ◽  
...  
Keyword(s):  
Fossil Record ◽  
Direct Evidence ◽  
Driving Forces ◽  
South Australia ◽  
Early Cambrian ◽  
Metazoan Evolution ◽  
Flinders Ranges ◽  
Shell Repair ◽  
Early Metazoan

Predation is arguably one of the main driving forces of early metazoan evolution, yet the fossil record of predation during the Ediacaran–Early Cambrian transition is relatively poor. Here, we present direct evidence of failed durophagous (shell-breaking) predation and subsequent shell repair in the Early Cambrian (Botoman) epibenthic mollusc Marocella from the Mernmerna Formation and Oraparinna Shale in the Flinders Ranges, South Australia. This record pushes back the first appearance of durophagy on molluscs by approximately 40 Myr.

Early Palaeozoic history of the upper Beardmore Glacier area: implications for a major Antarctic structural boundary within the Transantarctic Mountains

1989 ◽  
Vol 1 (3) ◽  
pp. 249-260 ◽  
Author(s):  
A.J. Rowell ◽  
Margaret N. Rees
Keyword(s):  
Volcanic Rocks ◽  
Glacier Area ◽  
Late Cambrian ◽  
History Of ◽  
Lower Palaeozoic ◽  
Transantarctic Mountains ◽  
Early Palaeozoic ◽  
Middle And Late Cambrian ◽  
Structural Boundary ◽  
Early Late

The central and western Transantarctic Mountains appear to be divided longitudinally by one or more terrane boundaries that separate two regions characterized by different Lower Palaeozoic successions. Re-examination of the upper Beardmore Glacier area and reinterpretation of its Early Palaeozoic stratigraphy emphasizes the strong similarity between it and the Byrd Group outcrops in the area between the Byrd and Nimrod glaciers. This similarity demonstrates that for several hundred kilometres the Cambrian succession of an inboard region is largely devoid of volcanic rocks but includes fossiliferous Lower Cambrian platformal limestones that are overlain unconformably by coarse basin-fill deposits. The latter probably include beds of Middle and perhaps early Late Cambrian age that were themselves deformed prior to the Devonian. Erratic blocks indicate that comparable successions may have been developed as far west as the Whichaway Nunataks. The inferred geological history of this part of the continental margin, which is commonly regarded as autochthonous, stands in contrast to that of more outboard regions where thick volcanic sequences occur in expanded stratigraphic sections that include shallow-marine Middle and Late Cambrian deposits. We consider that these regions, predominantly the Queen Maud and Theil mountains and the Neptune Range of the Pensacola Mountains, constitute one or more displaced crustal blocks. The boundary between them and the inboard sequence adjacent to the craton is probably a series of large strike-slip faults that may have been initiated during the Early Palaeozoic and have been active episodically since then.

Shelly fossils from the Early Cambrian (Toyonian) Wirrealpa, Aroona Creek, and Ramsay Limestones of South Australia

1993 ◽  
Vol 67 (5) ◽  
pp. 758-787 ◽  
Author(s):  
Glenn A. Brock ◽  
Barry J. Cooper
Keyword(s):  
Sequence Stratigraphy ◽  
Siberian Platform ◽  
South Australia ◽  
Early Cambrian ◽  
Middle Cambrian ◽  
Marine Transgression ◽  
Small Shelly Fossils ◽  
Flinders Ranges ◽  
Yorke Peninsula

Small shelly fossils from the Wirrealpa and Aroona Creek Limestones, Flinders Ranges, and the temporally equivalent Ramsay Limestone, Yorke Peninsula, South Australia, are described and assessed. These formations, deposited during a widespread marine transgression, have traditionally been assigned an early Middle Cambrian age based on lateral facies relationships, lithostratigraphic interpretation, and age diagnostic trilobites. However, new data from regional sequence stratigraphy and mounting paleontological evidence suggest that a late Early Cambrian age (equivalent to the Toyonian Stage from the Siberian Platform) is more appropriate for these units. Twenty-four taxa, including a number of problematica, poriferans, coeloscleritophorans, palaeoscolecidans, “conodontomorphs,” hyolithelminthes, hyoliths, mollusks, and inarticulate brachiopods, are reported herein; many of these have not previously been reported from the Cambrian of South Australia. The enigmatic Chalasiocranos exquisitum n. gen. and sp., known from disarticulated tuberculate cone-shaped phosphatic sclerites, and Protomelission gatehousei n. gen. and sp., a problematic, perhaps colonial organism, known from phosphatic plates, are especially notable. The genus Kaimenella is formally included in the Palaeoscolecida, and two species (including K. dailyi n. sp.) are recognized.

Middle–Late Cambrian Rankenella–Girvanella reefs of the Mila Formation, northern Iran

2008 ◽  
Vol 45 (6) ◽  
pp. 619-639 ◽  
Author(s):  
Peter D. Kruse ◽  
Andrey Yu Zhuravlev
Keyword(s):  
Low Energy ◽  
Energy Interval ◽  
Early Cambrian ◽  
Northern Iran ◽  
Reef Complex ◽  
Early Ordovician ◽  
Late Cambrian ◽  
Lime Mud ◽  
Shell Beds ◽  
Early Late

Following the collapse of the Early Cambrian archaeocyathan–calcimicrobial reef consortium, the Middle–Late Cambrian – Furongian was an interval dominated by purely microbial dendrolite and stromatolite reefs. However, among these latter, a few exceptional occurrences of metazoan reefs are known. One such reef complex occurs in the late Middle – early Late Cambrian – Furongian portion of the Mila Formation of northern Iran. In the otherwise low-energy interval of this formation, the anthaspidellid demosponge Rankenella hamdii sp. nov. is associated with encrusting Girvanella , eocrinoid plates, rhynchonelliformean brachiopod valves and subordinate hyoliths and trilobites in tempestite shell beds; these beds underwent synsedimentary cementation on the seafloor to form hardgrounds. In the succeeding, higher energy interval, a complex of metre-scale bioherms and (or) taphoherms incorporates toppled or transported Rankenella hamdii in association with brachiopods, echinoderm plates, trilobites and some red argillaceous lime mud. Among these, undoubted reefs were constructed from a framework of digitate Rankenella hamdii with thick Girvanella encrustations. These encrustations locally developed as subvertical columnar ministromatolites, which could also merge laterally to form more extensive masses. Subsequent pervasive cementation generated isopachous rinds that preserved the reef framework intact. Coeval and younger Cambrian anthaspidellid–calcimicrobial reefs are known from California–Nevada and Texas, USA. These were heralds of the Early Ordovician resurgence of metazoan reefs.

Further Australian Cambrian sphinctozoans

1987 ◽  
Vol 124 (6) ◽  
pp. 543-553 ◽  
Author(s):  
Peter D. Kruse
Keyword(s):  
New South ◽  
South Australia ◽  
Northern Territory ◽  
Tissue Type ◽  
Early Cambrian ◽  
New Genera ◽  
Middle Cambrian ◽  
South Wales ◽  
Family Level ◽  
History Of

AbstractTwo new genera and species of Middle Cambrian sphinctozoans, Jawonya gurumal and Wagima galbanyin, are described from the Tindall Limestone of the Daly Basin, Northern Territory, within continental platform successions of the northern Australian craton. They are ambisiphonate sebargasiids, coeval with the island-arc shelf fauna from the Ordian Stage of western New South Wales. Additionally, a new Early Cambrian (Atdabanian equivalent) species, ?Jawonya tiro, displaying some sphinctozoan and some archaeocyathan features, is documented from the Ajax Limestone of the Arrowie Basin, South Australia. It is tentatively regarded as the oldest known sphinctozoan, but raises the possibility of the derivation of sphinctozoans from archaeocyaths. A brief review charts the Early–Middle Palaeozoic history of the sphinctozoans. The use of filling tissue type as a family-level criterion in sphinctozoan classification needs some reappraisal, as some types are of secondary origin.

Early Ordovician alkali-ultramafic Zhilandy complex (Central Kazakhstan): structure and age of formation

2019 ◽  
Vol 484 (1) ◽  
pp. 61-65
Author(s):  
R. M. Antonuk ◽  
A. A. Tretyakov ◽  
K. E. Degtyarev ◽  
A. B. Kotov
Keyword(s):  
Complex Formation ◽  
Central Asian Orogenic Belt ◽  
Early Cambrian ◽  
Early Ordovician ◽  
Late Cambrian ◽  
Central Asian ◽  
Geochronological Study ◽  
Three Stages ◽  
Late Neoproterozoic ◽  
Quartz Monzodiorites

U–Pb geochronological study of amphibole-bearing quartz monzodiorites of the alkali-ultramafic Zhilandy complex in Central Kazakhstan, whose formation is deduced at the Early Ordovician era (479 ± 3 Ma). The obtained data indicate three stages of intra-plate magmatism in the western part of the Central Asian Orogenic Belt: Late Neoproterozoic stage of alkali syenites of the Karsakpay complex intrusion, Early Cambrian stage of ultramafic-gabbroid plutons of the Ulutau complex formation, and Late Cambrian–Early Ordovician stage of formation of the Zhilandy complex and Krasnomay complex intrusions.

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