Alcheringa: An Australasian Journal of Palaeontology最新文献

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Marine invertebrate fossils from the Permian–Triassic boundary beds of two core sections in the northern Perth Basin, Western Australia 西澳大利亚珀斯盆地北部两个岩心剖面二叠纪-三叠纪界线层的海洋无脊椎动物化石
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-04-03 DOI: 10.1080/03115518.2022.2062783
G. Shi, I. Metcalfe, Sangmin Lee, Daoliang Chu, Huiting Wu, Tinglu Yang, Y. Zakharov
{"title":"Marine invertebrate fossils from the Permian–Triassic boundary beds of two core sections in the northern Perth Basin, Western Australia","authors":"G. Shi, I. Metcalfe, Sangmin Lee, Daoliang Chu, Huiting Wu, Tinglu Yang, Y. Zakharov","doi":"10.1080/03115518.2022.2062783","DOIUrl":"https://doi.org/10.1080/03115518.2022.2062783","url":null,"abstract":"Abstract Marine macroinvertebrate fossils from two petroleum exploration cores, Apium-1 and Redback-2, are described, and found to contain two separate assemblages. The assemblage from the Apium-1 core was recovered from an ca 5-m-thick interval (2756.35–2751.28 m) in the basal Hovea Member (‘inertinitic interval’) of the Kockatea Shale and includes the following forms: ?Spinomarginifera sp., Cimmeriella sp., ?Etherilosia sp., Elivina sp., Cleiothyridina sp., and Paeckelmanelloidea gen. et. sp. indet. (all brachiopods). The age of this assemblage is interpreted as Changhsingian, as constrained by its association with the palynofloral Dulhuntyispora parvithola Zone. The assemblage from the Redback-2 core was recovered from the ‘sapropelic interval’ of the Hovea Member of the Kockatea Shale between 3806 m and 3786 m and comprises the following forms: Lingulidae gen. et sp. indet. (brachiopod), Claraia perthensis Dickins & McTavish, Crittendenia cf. australasiatica (Krumbeck), ?Paralledon sp. (bivalves), ?Otoceras sp. (ammonoid), Microconchus utahensis Zatoń, Taylor & Vinn (microconchid) and Magniestheria mangaliensis (Jones) (spinicaudatan). Among these, the first local appearances of the lingulid species, ?Otoceras sp. and M. mangaliensis are associated with the palynofloral Protohaploxypinus microcorpus Zone and are interpreted as latest Changhsingian in age. Other occurrences of the Redback-2 fossil assemblage overlap with the palynofloral Kraeuselisporites saeptatus Zone and are considered to be of earliest Triassic (Griesbachian) age. G.R. Shi [guang@uow.edu.au] and Sangmin Lee [sangminlee76@gmail.com], School of Earth, Atmospheric and Life Sciences, University of Wollongong, Northfields Ave, Wollongong, NSW 2522, Australia; Ian Metcalfe [imetcal2@une.edu.au], Earth Sciences, Earth Studies Building C02, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia; Daoliang Chu [chudl@cug.edu.cn], State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, Wuhan 430074, PR China; Huiting Wu [ht_wu415@163.com], College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing, PR China; Tinglu Yang [yang@geology.hk], Faculty of Geosciences, East China University of Technology, Nanchang 330013, PR China; Yuri D. Zakharov [yurizakh@mail.ru], Far East Geological Institute, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022 Russia.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122030830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Hyoliths from the Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia 西伯利亚外贝加尔湖东部(Zabaykalsky Krai)寒武系第二系Bystraya组的新石器
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-04-03 DOI: 10.1080/03115518.2022.2096924
J. S. Peel, A. Gubanov
{"title":"Hyoliths from the Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia","authors":"J. S. Peel, A. Gubanov","doi":"10.1080/03115518.2022.2096924","DOIUrl":"https://doi.org/10.1080/03115518.2022.2096924","url":null,"abstract":"Abstract The hyolith fauna of the middle Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia, includes at least 17 described taxa distributed between the orders Hyolithida and Orthothecida. Species of Microcornus, Parkula, Conotheca, Neogloborilus and Cupitheca are widely reported from Cambrian strata elsewhere. Triplicatella uslonica sp. nov. is known only from Transbaikalia. Dauritheca is proposed as a replacement generic name for the junior homonym Pachytheca, originally described from Xinjiang, China, and its range is extended to Transbaikalia. A conch with prominent comarginal ribs is referred to Salanytheca daurica sp. nov., a genus otherwise known from the early Cambrian of Mongolia and northern Siberia. John S. Peel [john.peel@pal.uu.se], Department of Earth Sciences (Palaeobiology), Uppsala University, Uppsala, Sweden; Alexander P. Gubanov [Alexander.Gubanov@pal.uu.se], Museum of Evolution, Uppsala University, Uppsala, Sweden.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121887214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new genus and species of ?parthenogenic anostracan (Pancrustacea, Branchiopoda, ?Thamnocephalidae) from the Lower Cretaceous Koonwarra Fossil Bed in Australia 澳大利亚下白垩统Koonwarra化石层孤雌anostracan (panrustae, branchi足目,Thamnocephalidae)一新属一新种
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-03-28 DOI: 10.1080/03115518.2022.2048267
Emma Van Houte, T. Hegna, A. Butler
{"title":"A new genus and species of ?parthenogenic anostracan (Pancrustacea, Branchiopoda, ?Thamnocephalidae) from the Lower Cretaceous Koonwarra Fossil Bed in Australia","authors":"Emma Van Houte, T. Hegna, A. Butler","doi":"10.1080/03115518.2022.2048267","DOIUrl":"https://doi.org/10.1080/03115518.2022.2048267","url":null,"abstract":"Abstract The fossil record of fairy shrimp, or anostracan crustaceans, is poor with only six species formally described to date. The group stratigraphically ranges from the Devonian to recent. The Lower Cretaceous (middle–upper Aptian) Koonwarra Fossil Bed in Australia contains a new species of anostracan, which we describe here. The Koonwarra Fossil Bed is famous for its rich fossil assemblage of avian-line dinosaur feathers, bony fish, insects and aquatic invertebrates that were preserved in the fine bottom sediments of a restricted montane waterbody. Previously, the Koonwarra Fossil Bed anostracans were classified as taxonomically indeterminate; however, we show that they are potentially attributable to Thamnocephalidae based on the egg shape found in gravid female individuals. Notably, all of the recovered Koonwarra Fossil Bed anostracans (∼40 individuals) are either females or juveniles. This suggests that the species might have undergone parthenogenic reproduction. Furthermore, the preservation of the fossils resembles experimentally decayed modern anostracans, evidencing decay-induced fabrics that retained remnants of the cuticle, digestive tract and internal anatomy to varying degrees. Emma Van Houte [vanh1629@fredonia.edu], Department of Geology and Environmental Sciences, SUNY Fredonia, Fredonia, NY 14063, USA; Thomas A. Hegna [thomas.hegna@fredonia.edu], Department of Geology and Environmental Sciences, SUNY Fredonia, Fredonia, NY 14063, USA; Aodhán D. Butler [aodhan.b@gmail.com], Palaeobiology Programme, Department of Earth Sciences: Uppsala University, Villavägen 16, Uppsala 75236, Sweden.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"458 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132581546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Convergent evolution in planktic graptolites: independent origin of the dicranograptid morphology in the Hirnantian (latest Ordovician) 浮游笔石的趋同演化:希尔南田(奥陶世晚期)笔石形态的独立起源
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-09 DOI: 10.1080/03115518.2021.2003430
L. Muir, Yuandong Zhang, J. Botting, Xuan Ma
{"title":"Convergent evolution in planktic graptolites: independent origin of the dicranograptid morphology in the Hirnantian (latest Ordovician)","authors":"L. Muir, Yuandong Zhang, J. Botting, Xuan Ma","doi":"10.1080/03115518.2021.2003430","DOIUrl":"https://doi.org/10.1080/03115518.2021.2003430","url":null,"abstract":"","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134074402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Early Ordovician conodonts from Barnicarndy 1 stratigraphic well of the Southern Canning Basin, Western Australia 西澳大利亚坎宁盆地南部Barnicarndy 1地层井早奥陶世牙形刺
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2021.2017481
Y. Zhen, Heidi J. Allen, Sarah K. Martin
{"title":"Early Ordovician conodonts from Barnicarndy 1 stratigraphic well of the Southern Canning Basin, Western Australia","authors":"Y. Zhen, Heidi J. Allen, Sarah K. Martin","doi":"10.1080/03115518.2021.2017481","DOIUrl":"https://doi.org/10.1080/03115518.2021.2017481","url":null,"abstract":"Abstract Documented here is the systematic description of conodonts from 10 samples collected within the Nambeet Formation in Barnicarndy 1, a deep stratigraphic drillhole located within the Barnicarndy Graben on the southwestern margin of the Canning Basin, Western Australia. The fauna is represented by 22 identifiable species including a new species, Juanognathus? denticulatus sp. nov., and several age-diagnostic taxa. Three biozones extending from the upper Tremadocian to upper Floian (Lower Ordovician) are recognized in these assemblages, including the Jumudontus gananda Biozone, the Oepikodus communis Biozone and the Paroistodus proteus Biozone, all previously recorded from the Samphire Marsh Member of the Nambeet Formation. Identification of this conodont succession has enabled both precise age constraints for this sequence and correlation to other occurrences of the Samphire Marsh Member, and indicates that this unit reaches an apparent thickness of 925 m (from 1345 to 2270 m depth) in Barnicarndy 1. This newly recovered fauna can be well correlated across the basin, such as with Nambeet Formation faunas intersected in the Olympic 1 petroleum well in the northwestern Broome Platform, and from correlative carbonates on the Lennard Shelf along the northern margin of the Canning Basin. Yong Yi Zhen [ yong-yi.zhen@planning.nsw.gov.au ], Geological Survey of New South Wales, W.B. Clarke Geoscience Center, 947-953 Londonderry Road, Londonderry NSW 2753, Australia; Heidi J Allen [ heidi.allen@dmirs.wa.gov.au ]; Sarah K Martin [ sarah.martin@dmirs.wa.gov.au ], Geological Survey of Western Australia, Department of Mines, Industry Regulation and Safety, Mineral House, 100 Plain Street, East Perth WA 6004.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115639805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Two new species of the genus Gumardee (Marsupialia, Macropodiformes) reveal the repeated evolution of bilophodonty in kangaroos 袋鼠属的两个新种(有袋目,大足形目)揭示了袋鼠双足性的重复进化
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2021.2012595
K. Travouillon, Kaylene Butler, M. Archer, S. Hand
{"title":"Two new species of the genus Gumardee (Marsupialia, Macropodiformes) reveal the repeated evolution of bilophodonty in kangaroos","authors":"K. Travouillon, Kaylene Butler, M. Archer, S. Hand","doi":"10.1080/03115518.2021.2012595","DOIUrl":"https://doi.org/10.1080/03115518.2021.2012595","url":null,"abstract":"Abstract Two new species of the fossil macropodiform genus Gumardee are described that provide insights into the evolution of early kangaroos. Gumardee has a continuous record from the late Oligocene to the early Miocene and is likely to have become extinct before the middle Miocene. The two new species are the most derived members of the genus. They exhibit some dental size variation, especially in P3/p3, which we interpret as evidence for sexual dimorphism. From the stratigraphically oldest species of Gumardee to the youngest, the dental morphology also shows a progression from bunolophodont to increasingly bilophodont. This trend appears to have occurred in at least four different lineages of macropodoids; however, a fully bilophodont condition was achieved only twice, once in the ancestral lineage of balbarids, and again in ancestral radiation of modern macropodids as implied by the species of Gumardee. Kenny. J. Travouillon [Kenny.Travouillon@museum.wa.gov.au], Western Australian Museum, Locked Bag 49, Welshpool DC, WA, 6986 Australia; Kaylene Butler [kaylene.butler@uqconnect.edu.au ], School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia; Michael Archer [m.archer@unsw.edu.au ], Earth and Sustainability Science Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, New South Wales 2052, Australia; Suzanne J. Hand [s.hand@unsw.edu.au ], Earth and Sustainability Science Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, New South Wales 2052, Australia.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117265318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Permian brachiopods from South Primorye, Far East Russia: systematics, palaeobiogeographical and palaeoceanographical implications 俄罗斯远东滨海南二叠纪腕足类:系统分类学、古地理和古海洋意义
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2022.2035434
G. Shi, Sangmin Lee, Galina V. Kotylar, Y. Zakharov
{"title":"Permian brachiopods from South Primorye, Far East Russia: systematics, palaeobiogeographical and palaeoceanographical implications","authors":"G. Shi, Sangmin Lee, Galina V. Kotylar, Y. Zakharov","doi":"10.1080/03115518.2022.2035434","DOIUrl":"https://doi.org/10.1080/03115518.2022.2035434","url":null,"abstract":"Abstract The South Primorye area of Far East Russia has long been recognized for its highly diverse mid-Permian brachiopod fauna; however, a taxonomic and palaeobiogeographical reassessment is overdue. This paper describes two brachiopod assemblages from the Barabash and Pilnikov section localities in South Primorye. The Barabash section assemblage was collected from the lower part of the Barabashevka Formation and includes 18 brachiopod species associated with other marine faunas indicative of the late Wordian. Alternatively, the Pilnikov section assemblage derives from the Pilnikov Formation and yields four brachiopod species consistent with the mid-Kungurian (Irenian). The palaeobiogeographical composition of the Barabash assemblage is distinguished by a conspicuous admixture of cool-water Boreal Realm elements and palaeoequatorial warm-water Cathaysian Province elements, together with genera that have antitropical distributions. Comparisons with analogous Neogene faunas from the Sea of Japan/East Sea suggest that the Barabash section might have been situated in the eastern part of the Sino-Mongolian seaway, which was located in an equivalent mid-latitude northern temperate confluence of warm- and cold-water ocean currents. G. R. Shi* [guang@uow.edu.au ] and Sangmin Lee [sangminlee76@gmail.com ], School of Earth, Atmospheric and Life Sciences, University of Wollongong, Northfields Ave, Wollongong, NSW 2522, Australia; Galina V. Kotlyar [galina_kotlyar@vsegei.ru ], Karpinsky All Russian Research Geological Institute (VSEGEI), Srednii pr. 74, St. Petersburg, 199106 Russia; Yuri D. Zakharov [ yurizakh@mail.ru ], Far East Geological Institute, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022 Russia.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128531320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Rhabdotaenia – a typical Gondwanan leaf from the upper Permian of Jordan 横纹草-约旦上二叠纪典型的冈瓦纳叶
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2022.2028899
P. Blomenkemper, H. Kerp, A. Abu Hamad, B. Bomfleur
{"title":"Rhabdotaenia – a typical Gondwanan leaf from the upper Permian of Jordan","authors":"P. Blomenkemper, H. Kerp, A. Abu Hamad, B. Bomfleur","doi":"10.1080/03115518.2022.2028899","DOIUrl":"https://doi.org/10.1080/03115518.2022.2028899","url":null,"abstract":"Abstract Rhabdotaenia, a typical leaf type of Gondwana (e.g., India, Australia, Africa, South America) is described from the Umm Irna Formation (Permian) of the Dead Sea Region, Jordan. Two fragments with well-preserved cuticles were collected during fieldwork in 2017 from a single locality. They are characterized by a taeniopterid morphology and sparsely anastomosing veins. Veins arise from the rachis at acute angles of about 45°, immediately dichotomize and recurve slightly to run at about 80° to the rachis straight towards the margin, sporadically dichotomizing a second time and forming sparse anastomoses. Epifluorescence microscopy revealed that stomata are confined to intercostal fields and are haplocheilic with exposed guard cells surrounded by only poorly differentiated subsidiary cells. Ordinary epidermal cells are characterized by slightly sinuous cell walls within intercostal fields. The new material is the northernmost occurrence of this genus reported so far, well within the palaeoequatorial belt of Pangea. This occurrence highlights the floral relationship of some assemblages of the so called ‘mixed floras’ of the Arabian Peninsula with Gondwana, and demonstrates that the Umm Irna Formation, in particular, still holds great potential for future palaeobotanical discoveries. Patrick Blomenkemper [p_blom02@uni-muenster.de], Paläobotanik, Westfälische Wilhelms-Universität, Heisenbergstraße 2, 48149 Münster, Germany; Hans Kerp [kerp@uni-muenster.de], Paläobotanik, Westfälische Wilhelms-Universität, Heisenbergstraße 2, 48149 Münster, Germany; Abdalla Abu Hamad [abdalla80@hotmail.com], University of Jordan, Queen Rania St, 2V7F + 85 Amman, Jordan; Benjamin Bomfleur [bbomfleur@uni-muenster.de], Paläobotanik, Westfälische Wilhelms-Universität, Heisenbergstraße 2, 48149 Münster, Germany.","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130299640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The stratigraphically lowest known Cambrian trilobites from the Dial Range Trough, northwest Tasmania and from western Tasmania 在塔斯马尼亚西北部和塔斯马尼亚西部的Dial Range槽发现的地层最低的寒武纪三叶虫
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2022.2043438
J. Jago, C. Bentley
{"title":"The stratigraphically lowest known Cambrian trilobites from the Dial Range Trough, northwest Tasmania and from western Tasmania","authors":"J. Jago, C. Bentley","doi":"10.1080/03115518.2022.2043438","DOIUrl":"https://doi.org/10.1080/03115518.2022.2043438","url":null,"abstract":"Abstract The stratigraphically lowest known agnostoids and trilobites from both the Dial Range Trough of northwest Tasmania and from western Tasmania are described. Those from the Dial Range Trough occur in the Isandula Road area and comprise the agnostoid Acadagnostus cf. rakuroensis, and the trilobites Pagetia sp., Nepea cf. nans and Paibianomocare? sp., thus suggesting a range between the Triplagnostus gibbus and Euagnostus opimus zones. Loxonepea is placed in synonymy with Nepea. The Sticht Range Beds of western Tasmania contain only two poorly preserved trilobite specimens referred to Anomocarellidae gen. et sp. indet.; a definite age cannot be obtained from this material. James B. Jago [jim.jago@unisa.edu.au], University of South Australia—STEM, Mawson Lakes, South Australia, 5095, Australia Christopher J. Bentley [bigfossil@bigpond.com], 30 Albert Street, Clare, South Australia, 5453, Australia","PeriodicalId":272731,"journal":{"name":"Alcheringa: An Australasian Journal of Palaeontology","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124395676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detrital zircon and apatite U-Pb geochronology of Ediacaran fossil–bearing strata spanning the late Ediacaran–Cambrian boundary in central Iran 伊朗中部晚埃迪卡拉-寒武系界线埃迪卡拉系含化石地层的碎屑锆石和磷灰石U-Pb年代学
Alcheringa: An Australasian Journal of Palaeontology Pub Date : 2022-01-02 DOI: 10.1080/03115518.2022.2044075
Farnoosh Farjandi, P. Vickers-Rich, U. Linnemann, M. Raveggi, M. Hofmann, M. Hall, T. Rich
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