摘要:

Pachystomaria parvipunctaMacGillivray is redescribed for the first time since its original introduction, from additional material from the Victorian Tertiary. Colonies are inferred to have been attached by rhizoids. The probable systematic relationships ofPachystomariaare briefly discussed.

ISSN:0311-5518    

DOI:10.1080/03115519508619504

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Bergiopterissp.cf. B. archangelskyiRigby 1991 foliage is identified for the first time from late Early or early Late Permian strata of the Wagina Sandstone, Perth Basin, Western Australia. The pinnate frond impressions represent the youngest examples of this Gondwanan genus yet found.Bergiopterissp.cf. B. archangelskyihas been previously recorded from the Sakmarian Nychum Volcanics, Queensland, and comparable forms occur in the roughly coeval Nueva Lubecka Formation, Argentina. Its extended stratigraphic range suggests caution should be applied to its use as a biostratigraphic marker.

ISSN:0311-5518    

DOI:10.1080/03115519508619505

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

The Laroona Formation and Mount Podge Limestone are defined for the lower conglomerates and micaceous sandstones, and the upper coralline limestones exposed in the Mount Podge area, north Queensland.Acanthophyllum (Acanthophyllum) clermontense -Protomacgeeafauna from these two units (mainly from the Mount Podge Limestone) in the area is of late Emsian age, and comparable with other Emsian to early Eifelian coral faunas from Queensland and New South Wales. Fifteen species belonging to 14 genera (one genus and 7 species new) are described from the Mount Podge Limestone, includingMicroplasma ronense(Mansuy 1913),Lekanophyllum laroonaensesp. nov.,Sanidophyllumsp.,Tabulophyllum carinatumsp. nov.,Carlinastraea callosasp. nov.,Australophyllumsp.,Xystriphyllumcf.dunstani(Etheridge 1911),X.cf.magnumHill 1942a,Taimyrophyllum pedderisp. nov.,Laroonaphyllum jackigen. et sp. nov.,Acanthophyllum (Acanthophyllum) clermontense(Etheridge 1911),Disphyllum (Disphyllum) paracouvinensesp. nov.,Phillipsastreasp. cf.maculosaHill 1942a,Protomacgeea minorsp. nov. andThamnophyllumsp., and one new speciesGaynaphyllum runningensesp. nov. from the very top of the underlying Laroona Formation.

ISSN:0311-5518    

DOI:10.1080/03115519508619506

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

An Ordovician nautiloid ellesmerocerid originally described asIrianoceras antiquum(Plectronoceratidae) Kobayashi 1971 from Irian Jaya and assigned a probable age of post Tremadoc is shown to be a member of the Llanvirn ellesmerocerid genusBactrocerasHolm 1878 (Baltoceratidae).Irianoceras antiquumis placed in synonymy withBactroceras latisiphonatumGlenister 1952 described from New South Wales, Australia. The new material provides a better analysis of the variability of the genotype, extends its geographic range, and documents the presence or former presence of upper Caradoc to lower Ashgill strata in Irian Jaya.

ISSN:0311-5518    

DOI:10.1080/03115519508619507

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Hausmannia papilioFeruglio is a widespread component of Albian fossil floras on Alexander Island, Antarctic Peninsula.Hausmanniacannot be separated from extantDipterisand is best regarded as a foliage form genus of the latter. Palaeoecological reconstructions suggests thatHausmannia papiliowas a stream-side dweller and pioneer species.

ISSN:0311-5518    

DOI:10.1080/03115519508619508

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor