首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
Jakobsen, K.G., Brock, G.A, Nielsen, A.T., Topper, T.P. & Harper, D.A.T., 2013. Middle Ordovician brachiopods from the Stairway Sandstone, Amadeus Basin, central Australia. Alcheringa. ISSN 0311–5518.

Middle Ordovician brachiopod faunas from the Amadeus Basin, central Australia are poorly known. The Darriwilian Stairway Sandstone was sampled stratigraphically for macrofossils in order to provide new information on marine benthic diversity in this clastic-dominated, shallow-water palaeoenvironment along the margin of northeastern Gondwana. The brachiopods from the Stairway Sandstone are of low diversity and represent ca 9% of the entire shelly fauna. Five brachiopod taxa are described from the Stairway Sandstone; all are endemic to the Amadeus Basin at species level. Two new species, Amadeuphyla joanae gen. et sp. nov. and Paralenorthis luritjaorum sp. nov., are described. Unweighted cladistic analysis based on 20 characters places the new genus Amadeuphyla within the Taffinae.

Kristian G. Jakobsen [] Geological Museum, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5–7, DK-1350 Copenhagen, Denmark & Department of Biological Sciences, Macquarie University, New South Wales 2109, Australia. Glenn A. Brock [] Department of Biological Sciences, Macquarie University, New South Wales 2109, Australia. Arne T. Nielsen [] Geological Museum, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5–7, DK-1350 Copenhagen, Denmark. Timothy P. Topper [] Geological Museum, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5–7, DK-1350 Copenhagen, Denmark. David A. T. Harper [] Geological Museum, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5–7, DK-1350 Copenhagen, Denmark & Department of Earth Sciences, Durham University, Durham, UK. Received 14.6.2013; revised 25.9.2013; accepted 8.10.2013.  相似文献   

3.
4.
<正>伦敦是个很有趣、很有活力的城市,时常会想方设法地调动你"寻宝"的心情,在城市中旅行。首先,发动艺术家和设计师来对某一主题事物进行创作,之后,再把这些造型千奇百怪的艺术品散布在城市的各个角落,装点了街头,又等着人们去发现。比如,4月时趁着复活节找彩蛋;5月、6月的女王登基60周年钻禧就找电话亭;到了奥运来临,就是找伦敦奥运会的吉祥物——文洛克和曼德维尔。  相似文献   

5.
6.
Jago, J.B., Bentley, C.J., Laurie, J.R. &; Corbett, K.B., 26 June 2018. Some middle and late Cambrian trilobites and brachiopods from the Adamsfield Trough, Tasmania. Alcheringa 43, 1-17. ISSN 0311-5518.

Cambrian Series 3 and Furongian trilobites and brachiopods are described from the Adamsfield Trough in southwestern Tasmania. The oldest fossils are very poorly preserved trilobites, assigned to Asaphiscidae gen. et sp. indet. from within the Island Road Formation a short distance above the unconformity with the underlying Proterozoic Wedge River Beds. A trilobite species from within the isolated Boyd River Formation is referred to Lioparia sp. The Island Road Formation and the Boyd River Formation are stratigraphically equivalent to the Trial Ridge Beds which have previously been dated as belonging to the Lejopyge laevigata Zone. The Trial Ridge Beds are overlain unconformably by the Singing Creek Formation. In the Adamsfield, Clear Hill and Stepped Hills areas, stratigraphic equivalents of the Singing Creek Formation collectively contain the trilobites Pseudaphelaspis sp., Pseudaphelaspis? sp., Prochuangia sp., Mindycrusta sp., Nepeidae gen. et sp. indet., and Olenidae gen. et sp. indet. plus the brachiopods described herein as Billingsella sp. aff. costata, Billingsella sp. A, Billingsella sp. B and a possible member of the Billingselloidea. The Singing Creek Formation has been previously correlated with the Stigmatoa diloma Zone. The genus Lotosoides Shergold 1975 is placed in synonymy with Prochuangia Kobayashi 1935.

James B. Jago* [] University of South Australia, School of Natural and Built Environment, Mawson Lakes, SA 5095, Australia; Christopher J. Bentley [] 30 Albert Street, Clare, SA 5453, Australia; John R. Laurie [] Department of Biological Sciences, Macquarie University, NSW 2109, Australia; Keith D. Corbett [] 35 Pillinger Drive, Fern Tree, Tas 7054, Australia.  相似文献   

7.
8.
9.
10.
秋游堪培拉     
<正>堪培拉的秋天是五彩的,秋日的阳光,为堪培拉泼上了一层浓重的油彩。澳洲的四季和中国正好相反,4月份正是澳大利亚的秋天。澳大利亚一年四季  相似文献   

11.
Popov, L.E. & Cocks, L.R.M., 2013. The radiation of early Silurian spiriferide brachiopods, with new taxa from the Llandovery of Iran. Alcheringa 38, 560–566. ISSN 0311–5518.

Although there were Late Ordovician spiriferides in the superfamily Cyrtioidea, namely Eospirifer and Odakella, only the former genus survived the terminal Ordovician extinction, and only Eospirifer is known from the earliest Llandovery (Rhuddanian). However, in the succeeding mid-Llandovery (Aeronian), the spiriferides radiated to include not only more species within Eospirifer and Striispirifer in the Eospiriferidae, but also the new genus Iranospirifer described here, which is the earliest representative of the other family within the superfamily, the Hedeinopsidae. The Ordovician species were confined to the South China continent and the Boshchekul volcanic island arc in Kazakhstan, but by the Aeronian the superfamily had spread westwards to various other continents, including the main Gondwanan superterrane (which included Iran) in the early Aeronian, and Avalonia-Baltica and Laurentia in the late Aeronian. The new species Eospirifer ghobadiae and Iranospirifer qarabilensis are both described from the lower Aeronian of Iran, and there is a note on the Aeronian rhynchonellide Stegocornu, which is endemic to Iran and nearby areas.

Leonid E. Popov [; ] Department of Geology, National Museum of Wales, Cathays Park, Cardiff CF10 3NP, UK. L. Robin M. Cocks [], Department of Earth Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK. Received 29.5.2013, revised 12.7.2013, accepted 21.7.2013.  相似文献   

12.
The musculature of the Recent Australian species, Magadina cumingi (Davidson 1852), is revised and previously unknown dorsal median pedicle muscles are described. The behaviour of M. cumingi is analysed in relation to the physical properties of the bryozoan sands it occupies on the Australian shelf. Functional morphology of a New Zealand Oligocene species, Rhizothyris amygdala Thomson 1920, indicates that this species would also have lived as a free and mobile form in the originally unconsolidated sediments (greensands) in which it is preserved. Shell characters of members of both Magadina and Rhizothyris are incompatible with an attached sedentary existence.  相似文献   

13.
This paper discusses the faunal, shell, and botanical remains from Casselden Place with the aim of investigating consumption and dietary patterns at the site during the nineteenth and early twentieth centuries. Each of the major food sources are discussed in detail with reference to historical records regarding the price of various supplies and their availability at the time.  相似文献   

14.
A left mandibular toothplate of a chimaeroid fish collected from the Toolebuc Formation (Early Cretaceous, Albian), central Queensland is described. Comparisons with other chimaeroid genera show the toothplate to be sufficiently distinct to warrant the erection of a new genus. Ptyktoptychion tayyo gen. et sp. nov. is distinguished by the size and shape of its three tritors, the form of the symphysial facet and the overall shape of the toothplate.  相似文献   

15.
Oligocene-Miocene rocks of the Torquay Basin contain at least 55 different species of calcareous nannofossils. These species allow zonation of an offshore subsurface section (Nerita No. 1 Well) and two onshore sections (near Torquay). The Angahook Formation and the base of the Jan Juc Formation in the Nerita No. 1 Well belong to Martini's (1971) NP 22 calcareous nannofossil Zone (early Oligocene). The NP 23 Zone could not be identified with certainty, but Zones NP 24/25 (late Oligocene) to NN 2 (early Miocene) were recognized in the Jan Juc Formation. The Oligocene-Miocene boundary is present between 122 m and 135 m below the sea floor at this site. The Puebla Formation, exposed at the sea floor, contains NN 5 spanning the early-middle Miocene boundary.

Onshore along the Torquay coast, NP 24/25 (late Oligocene) is present in the Angahook Formation; the Jan Juc Formation at Bird Rock also contains NP 24/25, except the uppermost 2.5 m which belongs to NN 1. The NN 2 Zone begins at the contact between the Jan Juc and Puebla Formations and continues upward for at least 3 m. After a covered interval, NN 4 was identified 10 m above the contact. The Oligocene-Miocene boundary is placed at the base of the hard band capping Bird Rock in the type section of the Jan Juc Formation.

Nannofossil assemblages in the Torquay sections suggest deposition in cool, shallow continental shelf waters. The assemblages in Nerita No. 1 Well also suggest cool shelf waters, although deeper than at Torquay.  相似文献   

16.
Koren', T. N., & Suyarkova, A. A., 1994:03:28. Monograptus deubeli and praedeubeli (Wenlock, Silurian) in the Asian part of the former Soviet Union. Alcheringa 18, 000–000. ISSN 0311-5518.

During the last decade the sequence and composition of the later Homerian (Wenlock) graptolite fauna has become comparatively well known in many regions of the world. A complete and detailed graptolite biozonation has been elaborated in Europe, and partly confirmed in Australia and Arctic Canada. Valuable new data have been obtained from several widely scattered areas within the Asian part of the former U. S. S. R. M. praedeubeli Jaeger (rare) and M. deubeli (common) have been found in the Homerian sequences in the Novosibirsk Islands and Novaya Zemlya, as well as in the southern Urals and the Turkestan-Alai Mountains of central Asia. In sections studied here, especially in the Alai Range, both species have well defined stratigraphic ranges in a variety of pelagic and hemipelagic facies. Their well established taxonomy based on sicular shape and thecal structure allows their recognition in material of different preservation. They belong to a single phylogenetic line and can be used as important biostratigraphic markers for interregional correlation, especially considering the distinct differences in the composition of associated monograptids. Thus, members of the Pristiograptus idoneus—Lobographu? claudiae lineage parallelling the development of M. praedeubeli and M. deubeli in the Homerian of central Asia, Australia, Arctic Canada and Arctic Russia are unknown from European and northern African sections.  相似文献   

17.
Muir, L.A. & Botting, J.P., December, 2007. Graptolite faunas and monaxonid demosponges of the Cyrtograptus lundgreni event (late Wenlock, Silurian) interval from the Orange district, New South Wales. Alcheringa 31, 375-395. ISSN 0311-5518.

Three monograptid and five retiolitid graptoloids, and one species of sponge, are described from late Wenlock sections (Cyr. lundgreni and Co. ludensis biozones) at Spring Creek and Wallace Creek, near Orange, New South Wales, Australia. The sponge Janussenia orangense gen. et sp. nov. is the first monaxonid demosponge to be described from the Australian Silurian. An object containing broken Testograptus testis, and interpreted as the faecal pellet of a predator or scavenger on graptoloids, is described.

Lucy A. Muir [l.muir@nhm.ac.uk], Department of Palaeontology, Natural History Museum, Cromwell Road, London SW7 5BD, UK. Joseph P. Botting [joe@asoldasthehills.org], 2C Roslyn Close, Mitcham CR4 3BB, UK. Received 28.4.2006; Revised 10.10.2006.  相似文献   

18.
Abstract

Here we document the investigation of the first Australian Aboriginal mortuary tree found since the early 20th century and the first studied by archaeologists and Aboriginal traditional owners. In 2001, a landowner discovered Aboriginal skeletal remains inside a fallen, dead tree while evaluating the tree’s potential as firewood, leading to the investigation of the site. The tree was located near Moyston, in southwestern Victoria, in traditional Djab Wurrung country and held the partial skeletons of three Aboriginal individuals—two adults and a child. Clay pipe-stem wear on several teeth belonging to the two adults indicates that these remains were broadly contemporaneous secondary placements from the early post-contact period (ca. a.d. 1835–1845). Along with five additional mortuary trees within 30 km of the Moyston tree, this practice constitutes a previously unknown traditional mortuary pattern and contributes to our understanding of the complex mortuary behavior of the Aboriginal people of southwestern Victoria.  相似文献   

19.
John Connell. New Caledonia or Kanaky? The Political History of a French Colony. Canberra: National Centre for Development Studies, Australian National University, 1987. xx+493 pp. $25.00.

Michael Spencer, Alan Ward and John Connell (eds). New Caledonia. Essays in Nationalism and Dependency. St Lucia: University of Queensland Press, 1988. xv+253 pp.  相似文献   


20.
Four species of hylid and leptodactylid frogs are reported from the Tertiary (mid-Miocene) Ngapakaldi fauna of the Etadunna Formation at Lake Palankarinna, South Australia. The species comprise Limnodynastes archeri sp. nov., Litoria sp. cf. caerulea (White), Litoria sp. indet. and Australobatrachus ilius Tyler. Previously the extant genera Limnodynastes and Litoria have been known only from Quaternary deposits.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号