摘要:

Brachiopods of the Early CarboniferousSchellwienella burlingtonensisZone in New South Wales are systematically described. The zone contains at least 39 species referred to 30 genera and 24 families. One genus and seven species are newly established, includingSchuchertella oversbyisp. nov.,Angustispatulata campbelligen. et sp. nov.,Plectospira simplexsp. nov.,Prospira maxwellisp. nov.,Crassumbo gresfordensissp. nov.,Actinoconchus rouchelensissp. nov. andHamburgia? hillaesp. nov. The threefold subdivision of the zone is confirmed. The Swains Gully Section in the Werrie Syncline is reinstated as the reference for theSpirifer soland base of theSchellwienella burlingtonensisZones. Section 39 in the Rouchel Block is selected as a reference section for the middle part of theS. burlingtonensisZone. The upper part of the zone is best represented by the Mt Richardson Section in the Gresford Block and Section 30 in the Rouchel Block. The lower part of the zone is characterised by the first appearance of the nominate species,Kitakamithyris rouchelensisandAntiquatonia spinulicosta, which persist through the higher part of the zone; the middle part (thePustula gracilis - Megachonetes alatusSubzone) by the first appearance ofPustula gracilis, Megachonetes alatus, Syringothyris texta, Kitakamithyris uniplicata, Spirifer (Mesochorispira)cf.grimesiandCrassumbo gresfordensissp. nov.; and the upper part (theMarginatia patersonensisSubzone) by the first appearance ofM. patersonenensis, Schuchertellacf.planumbona, Orthotetes australis, Brachythyris ellipticaandAsyrinxiacf.lata.

ISSN:0311-5518    

DOI:10.1080/03115519508619509

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Macrofossils of six terrestrial and epiphytic taxa from five families of moss (Musci) occur in Early Pleistocene sediments at Regatta Point, western Tasmania. These are:Ptychomnion aciculareandWeymouthia mollis, which are clearly the same as modern southern Australian species;Echinodium hispidumandThuidiumsp., which are probably modern species; a species ofPapillariathat appears to no longer occur in southeastern Australia; and one unidentified taxon. All are likely to have been species of wet forest or stream sides, and suggest that well-established rainforest occurred locally, at least in riparian areas.

ISSN:0311-5518    

DOI:10.1080/03115519508619510

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

A systematic revision of the Mactracea, Tellinacea and Myacea (Mactra isabelleana, Raeta plicatella, Macoma uruguayensis, Abra aequalis, Tagelus plebeius, Corbula patagonicaandErodona mactroides) recorded from marine taphocoenoses (Las Escobas Formation; + 4.5–2.5 m above m.s.l., mid-Holocene transgression, c.7,000–2,50014C ybp) distributed along 400 km in the coastal area of Buenos Aires Province (Argentina) has been undertaken. This has yielded important palaeoecological and palaeobiogeographical data with respect to the palaeonvironmental reconstruction of the area in relation to sea-level changes, especially since c.7,000 ybp. These data provide new evidence of the strong influence that sea-level fluctuations and climatic change have exerted on the molluscan fauna. This fauna varied in composition and distribution primarily due to progressively decreasing salinity (due to falling sea-level trend after c.7,000–6,500 ybp) and declining temperature (caused by post-hypsithermal cooling after c.4,000 ybp) affecting the bonaerensian coastal area (Río de La Plata and Argentine Sea in the western South Atlantic) during the Holocene.

ISSN:0311-5518    

DOI:10.1080/03115519508619511

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Soft parts ofIsoxys auritus, such as antennae, biramous limbs, eyes, mouth, stomach and adductor muscle scars, have been discovered in material from the Early Cambrian Chengjiang fossilLagerstättein Yunnan, South China.Isoxys auritusbears two pairs of antennae and eleven pairs of primitive biramous appendages which suggest it to be a stem-lineage crustacean.

ISSN:0311-5518    

DOI:10.1080/03115519508619512

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor