摘要:

The history of discovery of Australian mammals is reviewed, and it is concluded that although we may be approaching a reasonable knowledge of the diversity of Pleistocene mammals, the Tertiary record is only beginning to unfold.

ISSN:0311-5518    

DOI:10.1080/03115517808619074

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

Palaeozoogeographical provincialism in the Ordovician Period is well portrayed by brachiopod, conodont, graptolite and trilobite faunas. The provinces defined for each taxonomic group show a remarkable degree of correspondence in geographical extent and temporal expression, so much so as to suggest the operation of a common causal mechanism. A convincing body of evidence is available in support of the view that latitudinal variation in surface water temperature was primarily responsible for the provincialism displayed by the epipelagic graptolites. In the partially or exclusively benthic brachiopods, conodonts and trilobites, however, the primary temperature effect is masked, in varying degrees, by secondary factors, which may have included the influence of the seabed environment, geographical separation (isolation) of coeval faunas, and physical barriers to migration.

ISSN:0311-5518    

DOI:10.1080/03115517808619075

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

An archaeocyathan fauna from a single limestone lens in the upper Cymbric Vale Formation at Mt. Wright shows species in common with the historic Ajax Mine fauna of the Flinders Ranges, South Australia. The Cymbric Vale fauna is considered equivalent to the lower Sanashtykgol ‘horizon’ of the Altay Sayan fold belt of Siberia.

ISSN:0311-5518    

DOI:10.1080/03115517808619076

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

ISSN:0311-5518    

DOI:10.1080/03115517808619077

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

A new species of trilobite,Doublatia matheriis described from the Early Permian Colraine Mudstone (Manning Group) of the Kimbriki district, near Wingham in central eastern New South Wales. Further Early Permian faunas are recorded from the diamictites of the ‘Kullatine Series’ underlying the Manning Group.

ISSN:0311-5518    

DOI:10.1080/03115517808619078

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

Examination of small bioherms in the Early Pennsylvanian Morrow Series of northeastern Oklahoma makes possible better understanding of the changes in structure and composition of organic mounds through time during the Carboniferous of North America. Three phases of biohermal development are described: initiation and stabilization of the substrate by blue-green algae, diversification and habitation of the bioherms by a variety of organisms, and domination by encrusting bryozoans or blue-green algae with termination of mound growth. Three assemblages of organisms may be recognised and include an unusual cavity association. Comparison of the bioherms with modern patch reefs enables greater understanding of the significance of modern and fossil assemblages developed on a carbonate mud substrate.

ISSN:0311-5518    

DOI:10.1080/03115517808619079

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor

摘要:

The lunettes at Mungo and other dry lakes along Willandra Creek in western New South Wales have provided the best dated late Pleistocene geomorphological sequence for Australia. They also contain the oldest archaeological material, including human burials and cremations, in Australia, but the remains of extinct Pleistocene mammal species are extremely rare. At Menindee and other lakes along the Darling River, 150 km to the west, lunettes of apparently similar age contain both archaeological material and abundant fossils of extinct species. The rarity of such fossils along the Willandra Lakes has been cited as evidence that the extinction of the Pleistocene species occurred before 30,000 BP. However, a comparison of the Darling and Willandra sites in terms of taphonomy and palaeoecology leads to the conclusion that these sites do not yet provide any definitive evidence for the time or causes of the Pleistocene extinctions.

ISSN:0311-5518    

DOI:10.1080/03115517808619080

出版商:Taylor & Francis Group    

年代:1978

数据来源: Taylor