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 510 毫秒
1.
McLoughlin, S., September 2016. Exceptional fossils and biotas of Gondwana: the fortieth anniversary issue of Alcheringa. Alcheringa 40, xxx–xxx. ISSN 0311-5518.

Stephen McLoughlin [], Department of Palaeobiology, Swedish Museum of Natural History, Stockholm, Box 50007, S-104 05, Sweden. Submitted 22.8.2016.  相似文献   

2.
Tineo, D.E., Bona, P., Pérez, L.M., Vergani, G.D., González, G., Poiré, D.G., Gasparini, Z.N. & Legarreta, P., 1.10.2014. Palaeoenvironmental implications of the giant crocodylian Mourasuchus (Alligatoridae, Caimaninae) in the Yecua Formation (late Miocene) of Bolivia. Alcheringa 39, xxx–xxx. ISSN 0311-5518

Outcrops of the Yecua Formation (late Miocene) are exposed for approximately 230 m along the La Angostura section of the Piraí River (50 km southwest of Santa Cruz de la Sierra). These reveal massive (argillic palaeosols) and laminated (quiet-water lacustrine and marsh settings) mudstones interbedded with thin sandstones containing microfossils, molluscs and vertebrate remains. Significantly, the succession hosts a giant crocodylian, Mourasuchus (Alligatoridae, Caimaninae), which is represented by both skull and postcranial fragments found in association with freshwater turtles and fishes. Mourasuchus was distributed widely from the middle Miocene of Colombia to upper Miocene of Venezuela, Brazil and Argentina, suggesting connections between major fluvial systems and an active mechanism for dispersal of South American freshwater vertebrates during the Miocene.

David Eric Tineo [] and Daniel Gustavo Poiré [], CONICET—Centro de Investigaciones Geológicas, Universidad Nacional de La Plata. Calle 1 (644), B1900FWA, La Plata, Argentina; Paula Bona [] and Zulma Gasparini [], CONICET—División Paleontología Vertebrados, Museo de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina; Leandro Martín Pérez [] CONICET—División Paleozoología Invertebrados, Museo de La Plata. Paseo del Bosque s/n, B1900FWA, La Plata, Argentina; Gustavo Dardo Vergani []Pluspetrol S.A. Lima (339), C1073AAG, Ciudad Autónoma de Buenos Aires, Argentina; Gloria González Rigas []Pluspetrol Bolivia Corporation SA, Av. Grigotá esq. Las Palmas, Santa Cruz de la Sierra, Bolivia; Pablo Legarreta []—Pluspetrol S.A. Lima (339), C1073AAG, Ciudad Autónoma de Buenos Aires, Argentina.  相似文献   

3.
4.
Donovan, S.K. &; Helwerda, R.A., August 2016. Neogene crinoids of southeast Asia: preservation, systematics and significance. Alcheringa 41, xxx–xxx. ISSN 0311-5518.

The Cenozoic record of fossil crinoids is poor. In part, this is because the stalked taxa have moved into deep water (>100–150 m water depth) since the Cretaceous, but also results from the propensity for the crinoid endoskeleton to disarticulate soon after death. Despite this, we report two new, small crinoid faunas of moderate diversity from the Pliocene of East Kalimantan and the Philippines. Included taxa are columnals of the isocrinid Metacrinus? sp.; a bourgueticrinid cup and columnal, Democrinus? sp.; and cirral and brachial ossicles (isocrinids and comatulids). The preservation of these Pliocene crinoids is not conducive to classification to the level of species, although some taxa are easier to determine than others, but the precise reason for this dearth of complete specimens remains uncertain. Because of our knowledge of extant crinoids, this Cenozoic ‘gap’ has been poorly appreciated. Rather than denigrating the Pliocene crinoids documented herein for being fragmentary and difficult to accurately determine, we instead report them as a rare set of data points, filling, in part, the Cenozoic ‘gap’.

Stephen K. Donovan [] and Renate Helwerda [], Naturalis Biodiversity Center, Postbus 9517, 2300 RA Leiden, The Netherlands. Received 03.05.2016; revised 16.06.2016; accepted 21.6.2016.  相似文献   

5.
Cleal, C.J., Bhat, G.M., Singh, K.J., Dar, A.M., Saxena, A. & Chandra, S., February 2016. Spondylodendron pranabii—the dominant lycopsid of the late Mississippian vegetation of the Kashmir Himalaya. Alcheringa 40, xxx–xxx. ISSN 0311-5518.

The Sepukhovian fossil floras of the northern margins of Gondwana, on the shores of the Palaeotethys, are dominated by remains of an eligulate, mainly monopodial lycopsid with persistent leaves. The stems show considerable morphological and preservational variation that has historically resulted in the fossils having been assigned to many fossil-species and -genera. However, there is now clear evidence that this simply reflects variation within a single fossil-species, reflecting biological variation and the effects of variable taphonomy, for which the correct taxonomic name is Spondylodendron pranabii (Pal) comb. nov. Part of this morphological variation might have been due to variations in growth rate during the life of the individual plants, which in turn might reflect stressed growing conditions in a wetland habitat. The systematic position of Spondylodendron remains uncertain, owing to the lack of unequivocal evidence of reproductive structures, but it might have affinities with the Sublepidodendraceae.

Christopher J. Cleal [], Department of Natural Sciences, National Museum Wales, Cathays Park, Cardiff CF10 3NP, UK; G.M. Bhat [] and A.M. Dar, Department of Geology, University of Jammu, Jammu, India; Kamal Jeet Singh, [] and Anju Saxena [], Birbal Sahni Institute of Palaeobotany, 53 University Road, Lucknow-226007, (U.P.) India; Shaila Chandra, Flat Number 105, Beverly Park Apartment 422, New Hyderabad, Lucknow-226007, (U.P.) India.  相似文献   

6.
Yang, T.L., He, W.H., Zhang, K.X., Wu, S.B., Zhang, Y., Yue, M.L., Wu, H.T. & Xiao, Y.F., November 2015. Palaeoecological insights into the Changhsingian–Induan (latest Permian–earliest Triassic) bivalve fauna at Dongpan, southern Guangxi, South China. Alcheringa 40, xxx–xxx. ISSN 0311-5518.

The Talung Formation (latest Permian) and basal part of Luolou Formation (earliest Triassic) of the Dongpan section have yielded 30 bivalve species in 17 genera. Eight genera incorporating 11 species are systematically described herein, including three new species: Nuculopsis guangxiensis, Parallelodon changhsingensis and Palaeolima fangi. Two assemblages are recognized, i.e., the Hunanopecten exilisEuchondria fusuiensis assemblage from the Talung Formation and the Claraia dieneri–Claraia griesbachi assemblage from the Luolou Formation. The former is characterized by abundant Euchondria fusuiensis, an endemic species, associated with other common genera, such as Hunanopecten, which make it unique from coeval assemblages of South China. A palaeoecological analysis indicates that the Changhsingian bivalve assemblage at Dongpan is diverse and represented by various life habits characteristic of a complex ecosystem. This also suggests that redox conditions were oxic to suboxic in deep marine environments of the southernmost Yangtze Basin during the late Changhsingian, although several episodes of anoxic perturbations and declines in palaeoproductivity saw deterioratation of local habitats and altered the taxonomic composition or population size of the bivalve fauna.

Tinglu Yang [], School of Earth Sciences, China University of Geosciences, 388 Lumo Road, Hongshan, Wuhan 430074, PR China; Weihong He* [] and Kexin Zhang [], State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences, China University of Geosciences, 388 Lumo Road, Hongshan, Wuhan 430074, PR China; Shunbao Wu [], Yang Zhang [], Mingliang Yue [], Huiting Wu [] and Yifan Xiao [], School of Earth Sciences, China University of Geosciences, 388 Lumo Road, Hongshan, Wuhan 430074, PR China.  相似文献   


7.
Zheng, D., Zhang, Q., Nel, A., Jarzembowski, E.A., Zhou, Z., Chang, S.-C. &; Wang, B., May 2016. New damselflies (Odonata: Zygoptera: Hemiphlebiidae, Dysagrionidae) from mid-Cretaceous Burmese amber. Alcheringa XX, xxx–xxx. ISSN 0311-5518

Two damselflies, Burmahemiphlebia zhangi gen. et sp. nov. and Palaeodysagrion cretacicus gen. et sp. nov., are described from the mid-Cretaceous Burmese amber. Burmahemiphlebia zhangi is the first record of Hemiphlebiidae from this amber, although the family was cosmopolitan during the Mesozoic. It can be readily distinguished from all other members of Hemiphlebiidae in having very short MP and CuA veins, and in its rectangular discoidal cell. The new fossils support the view that hemiphlebiid damselflies were one of the dominant groups of Zygoptera during the Mesozoic. Palaeodysagrion cretacicus is the first dysagrionid damselfly from Burmese amber and the second Mesozoic representative of this predominantly Paleogene group. It differs from other members of Dysagrionidae in having a unique elongate discoidal cell. These new finds increase the diversity of damselflies in mid-Cretaceous Burmese amber.

Daran Zheng* [], Su-Chin Chang [], Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, PR China; Qingqing Zhang [], Edmund A. Jarzembowski? [], Bo Wang? [], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, PR China; André Nel [], Institut de Systématique, Évolution, Biodiversité, ISYEB-UMR 7205-CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, CP 50, Entomologie, F-75005, Paris, France; Zhicheng Zhou [], The PLA Information Engineering University, 62 Kexue Ave, Gaoxin District, Zhengzhou 450002, Henan, PR China. *Also affiliated with State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, PR China. ?Also affiliated with Department of Earth Sciences, The Natural History Museum, London SW7 5BD, UK. ?Also affiliated with Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.  相似文献   

8.
Khan, M.A., Babar, M.A., Akhtar, M., Iliopoulos, G., Rakha, A. & Noor, T., November 2015. Gazella (Bovidae, Ruminantia) remains from the Siwalik Group of Pakistan. Alcheringa 40, xxx–xxx. ISSN 0311-5518.

New gazelle fossils are described from the Siwalik Group of Pakistan. The material includes horncores, maxilla and mandible fragments, and isolated teeth. The available samples are assigned to three Gazella species: Gazella sp. in the Lower Siwalik Subgroup (ca 14.2–11.2 Ma), and G. lydekkeri and G. superba in the Middle Siwalik Subgroup (ca 10.2–3.4 Ma). Based on a review of the Siwalik Group gazelles, G. padriensis is synonymized with G. lydekkeri. Gazella superba Pilgrim, 1939 sensu stricto is a large form and is a valid species of the genus in the Siwalik Group.

Muhammad Akbar Khan [], Muhammad Adeeb Babar [], Muhammad Akhtar [], Allah Rakha [], Tuba Noor [], Abu Bakr Fossil Display & Research Centre, Department of Zoology, Quid-e-Azam Campus, Punjab University (54590), Lahore, Pakistan; George Iliopoulos [], Geology Department of the University of Patras, Patras, Greece.  相似文献   


9.
Dong, F., Shih, C.K., Skibińska, K., Krzemiński, W. & Ren, D., 10.4.2015. New species of Tanyderidae (Diptera) from the Jiulongshan Formation of China. Alcheringa 39, xxx–xxx. ISSN 0311-5518

Two new tanyderid species of Praemacrochile Kalugina, 1985 (P. dryasis, P. ovalum) and one new tanyderid species of Protanyderus Handlirsch, 1909 (P. astictum) are described and illustrated from the late Middle Jurassic Jiulongshan Formation of Daohugou in eastern Inner Mongolia, China. These species are circumscribed using well-preserved fossil specimens with bodies and complete wings. We also collected and identified new material of two species of Praemacrochile (P. ansorgei Lukashevich & Krzemiński and P. chinensis, Krzemiński & Ren) and one species of Protanyderus (P. vulcanium Zhang) from the same locality.

Fei Dong [], Dong Ren [] and Chungkun Shih [], College of Life Sciences, Capital Normal University, Xisanhuanbeilu 105, Haidian District, Beijing, PR China 100048; Kornelia Skibińska [] Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Krakow, Poland; Wies?aw Krzemiński [] Pedagogical University of Cracow, Faculty of Geography and Biology, Institute of Biology, ul. Podchor??ych 2, 30-084 Kraków, ma?opolskie, Poland.  相似文献   

10.
Aftab, K., Khan, M.A., Ahmad, Z. & Akhtar, M., February 2016. Progiraffa (Artiodactyla: Ruminantia: Giraffidae) from the Lower Siwalik Subgroup (Miocene) of Pakistan. Alcheringa 40, xxx–xxx. ISSN 0311-5518

Previously, Progiraffa exigua has been reported only from the Kamlial Formation (ca 18.3–14.2 Ma) of the Siwalik Group. We record Progiraffa exigua from the Lower Siwalik Subgroup at five localities: Jaba, Chinji Rest House, Rakh Wasnal, Dhok Bun Amir Khatoon and Ghungrila, Pakistan, thus extending the range of P. exigua to the Chinji Formation of the Siwalik Group (ca 14.2–11.2 Ma).

Kiran Aftab [], Zaheer Ahmad [], Zoology Department, GC University, Lahore, Pakistan; Muhammad Akbar Khan [], Muhammad Akhtar [], Dr Abu Bakr Fossil Display & Research Centre, Zoology Department, University of the Punjab, Lahore, Punjab, Pakistan.  相似文献   


11.
Hampe, O., Witzmann, F. & Asbach, P., 2014. A benign bone-forming tumour (osteoma) on the skull of a fossil balaenopterid whale from the Pliocene of Chile. Alcheringa 38, xxx–xxx. ISSN 0311–5518.

A pathology of the fossil baleen whale ‘Megapterahubachi from the early Pliocene of Chile is described. It is a bony outgrowth on the left side of the supraoccipital, which is interpreted as a benign bone-forming tumour (osteoma). This diagnosis is based on X-ray imaging and CT scans of the abnormal bone, revealing a homogeneously dense internal structure with no evidence for lytic areas. The osteoma described here in ‘Megaptera’ hubachi is the first unequivocal evidence of a bone tumour in a cetacean, fossil or extant.

Oliver Hampe [] and Florian Witzmann [], Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, D-10115 Berlin, Germany; Patrick Asbach [], Institut für Radiologie, Charité—Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany. Received 28.8.2013, revised 7.11.2013, accepted 12.11.2013.  相似文献   

12.
Wang, G., Percival, I.G. & Li, R., 25.2.2015. Remarks on the pattern of septal insertion in rugose corals. Alcheringa 39, xxx–xxx. ISSN 0311-5518

Well-preserved specimens of the Hirnantian (latest Ordovician) rugose coral Lambeophyllum? corniculum He from the Yangtze Platform of South China, clearly show how catasepta (minor septa) are inserted, confirming the model proposed by Weyer in the 1970s. Our observations indicate the insertion of counter lateral septa and their neighbouring catasepta on the counter side takes place in exactly the same manner as that of the subsequent metasepta and catasepta. We propose abandoning the use of the term counter lateral septa. Therefore, exclusion of the pair of counter lateral septa reduces the number of protosepta from six to four.

Guangxu Wang [], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (CAS), 39 East Beijing Road, Nanjing 210008, PR China; Ian G. Percival [], Geological Survey of New South Wales, 947953 Londonderry Road, Londonderry, NSW 2753, Australia; Rongyu Li [], Department of Geology, Brandon University, Manitoba R7A 6A9, Canada.  相似文献   

13.
Chen, J., Beattie, R., Wang, B., Jiang, H., Zheng, Y. & Zhang, H., 12 April 2019. The first palaeontinid from the Late Jurassic of Australia (Hemiptera, Cicadomorpha, Palaeontinidae). Alcheringa 43, 449–454. ISSN 0311-5518.

Palaeontinidae, an extinct group of large arboreal insects, has the most diverse record among the Mesozoic Hemiptera, but only a few taxa have been reported from the Southern Hemisphere. Herein, Talbragarocossus jurassicus Chen, Beattie & Wang gen. et sp. nov., one of the earliest representatives of ‘late’ Palaeontinidae, is described and illustrated from the Upper Jurassic Talbragar Fossil Fish Bed in New South Wales, Australia. This new taxon constitutes the first representative of Palaeontinidae in Australia and the first Jurassic example in Gondwanaland, providing significant distributional and stratigraphic extensions to the family.

Jun Chen*? [] and Yan Zheng? [], Institute of Geology and Paleontology, Linyi University, Shuangling Road, Linyi 276000, China. Bo Wang? [], Hui Jiang [] and Haichun Zhang [] State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China. Robert Beattie [], Australian Museum, 1 William St., Sydney, NSW 2010, Australia. ?Also affiliated with: State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China. ?Also affiliated with: Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Minerals, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.  相似文献   

14.
Zhang, W.T., Shih, C.K. &; Ren, D., May 2016. Two new fossil caddisflies (Amphiesmenoptera: Trichoptera) from the Middle Jurassic of northeastern China. Alcheringa XX, xxx–xxx. ISSN 0311-5518.

Two new species, Acisarcuatus locellatus (Necrotauliidae) and Liadotaulius limus (?Philopotamidae) are described. They were collected from the Middle Jurassic Jiulongshan Formation of Daohugou Village, Ningcheng County, Inner Mongolia, China. In addition, we interpret Karatauliodes to be a junior synonym of Necrotaulius and propose Necrotaulius minutus (Sukatsheva, 1968) comb. nov. We propose transferring Necrotaulius korujensis and Necrotaulius shewjensis to Liadotaulius as Liadotaulius korujensis (Sukatsheva, 1990) comb. nov. and Liadotaulius shewjensis (Sukatsheva, 1990) comb. nov. Based on newly described taxa and the new combinations proposed, we summarize seven known genera with 24 species within Necrotauliidae and provide a key to the genera of this family.

Weiting Zhang [], Geoscience Museum, Hebei GEO University, 136 Huaiandonglu, Shijiazhuang, 050031, PR China; Chungkun Shih [] and Dong Ren [], College of Life Sciences, Capital Normal University, 105 Xisanhuanbeilu, Haidian District, Beijing 100048, PR China; Chungkun Shih, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC 20013-7012, USA.  相似文献   

15.
Binfield, P., Archer, M., Hand, S.J., Black, K.H., Myers, T.J., Gillespie, A.K. & Arena, D.A., June 2016. A new Miocene carnivorous marsupial, Barinya kutjamarpensis (Dasyuromorphia), from central Australia. Alcheringa 41, xx–xx. ISSN 0311-5518.

A new dasyuromorphian, Barinya kutjamarpensis sp. nov., is described on the basis of a partial dentary recovered from the Miocene Wipajiri Formation of northern South Australia. Although about the same size as the only other species of this genus, B. wangala from the Miocene faunal assemblages of the Riversleigh World Heritage Area, northwestern Queensland, it has significant differences in morphology including a very reduced talonid on M4 and proportionately wider molars. Based on the structural differences and the more extensive wear on its teeth, the central Australian species might have consumed harder or more abrasive prey in a more silt-rich environment than its congener, which hunted in the wet early to middle Miocene forests of Riversleigh.

Pippa Binfield [], Michael Archer [], Suzanne J. Hand [], Karen H. Black [], Troy J. Myers [] Anna K. Gillespie [] and Derrick A. Arena [], PANGEA Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales 2052, Sydney, Australia.  相似文献   


16.
VandenBerg, A.H.M. & Maletz, J., April 2016. The holotype of Pseudisograptus manubriatus manubriatus (Hall, 1914)—implications for the identification of Pseudisograptus manubriatus subspecies. Alcheringa 40, xxx–xxx. ISSN 0311-5518

The holotype of Pseudisograptus manubriatus manubriatus (Hall, 1914) has been rediscovered in the collections of Museum Victoria and is recognized to belong to Pseudisograptus manubriatus harrisi as described by Cooper & Ni (1986). This taxon becomes a junior synonym of P. m. manubriatus. The selected neotype of Pseudisograptus manubriatus manubriatus (Hall, 1914) can be referred to Pseudisograptus manubriatus texanus Cooper & Ni, 1986. The proximal development in all known relief specimens of Pseudisograptus and their descendants indicates that a symmetrical development of the manubrium must be regarded as the rule, and the interpretation of a strong asymmetry in Pseudisograptus manubriatus texanus is rejected.

Alfons H.M. VandenBerg [, ], Geology, Museum Victoria, GPO Box 666, Vic 3001, Australia; Jörg Maletz [], Department of Earth Sciences, FU Berlin, Malteserstrasse 74-100, D-12249 Berlin, Germany.  相似文献   

17.
Govender, R., Bisconti, M. & Chinsamy, A., June 2016. A late Miocene–early Pliocene baleen whale assemblage from Langebaanweg, west coast of South Africa (Mammalia, Cetacea, Mysticeti). Alcheringa 40, xxx–xxx. ISSN 0311-5518

Knowledge of post-Eocene cetaceans from Africa is very poor with almost nothing known about this group from southern Africa except for the diverse trawled ziphiids. Langebaanweg, a locality yielding prolific Miocene–Pliocene fossils on the southwestern Cape coast of South Africa, preserves terrestrial and marine biotas in juxtaposition. Palaeoenvironments vary from a marine shoreline to a lagoon and estuary and later a shallow marine environment and include several microhabitats. Fragmentary preservation of the cetacean skeletons suggests that they were transported before burial. This first detailed analysis of the Mio-Pliocene mysticete fossils from Langebaanweg uses the petrotympanic region to taxonomically identify specimens. Three un-named species of balaenopterid Mysticeti represent a Plesiobalaenoptera-like form, but it is premature to erect a new taxon based on this fragmentary material. The remaining material is too poorly preserved to be identified with confidence.

Romala Govender [], Natural History Department, Iziko Museums of South Africa, PO Box 61, Cape Town, 8001, South Africa; Biological Sciences, University of Cape Town, Private Bag X3, Rhodes Gift, 7701, Cape Town, South Africa, Michelangelo Bisconti [], Natural History Museum of San Diego, California, 1788 El Prado, San Diego, CA 92101, USA; Anusuya Chinsamy [], Biological Sciences, University of Cape Town, Private Bag X3, Rhodes Gift, 7701, Cape Town, South Africa.  相似文献   

18.
Wang, H., Li, S., Zhang, Q., Fang, Y., Wang, B. & Zhang, H., 13.02.2015. A new species of Aboilus (Insecta, Orthoptera) from the Jurassic Daohugou beds of China, and discussion of forewing coloration in Aboilus. Alcheringa 39, xxx–xxx. ISSN 0311-5518

He Wang* [], Sha Li* [], Qi Zhang* [], Yan Fang [], Bo Wang? [] and Haichun Zhang [], State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, PR China.*Also affiliated with University of Chinese Academy of Sciences, Beijing 100049, PR China. ?Also affiliated with Steinmann Institute, University of Bonn, Bonn 53115, Germany.

A new species of Aboilinae (Orthoptera: Prophalangopsidae), Aboilus perbellus, is described and illustrated based on three well-preserved forewings recovered from the Middle–Upper Jurassic Daohugou beds of Inner Mongolia, China. The new species differs from all congeneric forms in its special forewing coloration and features of its wing venation. To date, three types of forewing coloration have been found among different species of Aboilus at Daohugou, suggesting that these taxa inhabited different ecotopes.  相似文献   

19.
Taboada, A.C., Mory, A.J., Shi, G.R., Haig, D.W. & Pinilla, M.K., 12.11.2014. An Early Permian brachiopod–gastropod fauna from the Calytrix Formation, Barbwire Terrace, Canning Basin, Western Australia. Alcheringa 39, xxx–xxx. ISSN 0311-5518

A small brachiopod–gastropod fauna from a core close to the base of the Calytrix Formation within the Grant Group includes the brachiopods Altiplecus decipiens (Hosking), Myodelthyrium dickinsi (Thomas), Brachythyrinella narsarhensis (Reed), Neochonetes (Sommeriella) obrieni Archbold, Tivertonia barbwirensis sp. nov. and the gastropod Peruvispira canningensis sp. nov. The fauna has affinities with that of the late Sakmarian?early Artinskian Nura Nura Member directly overlying the Grant Group in other parts of the basin but, as with all lower Cisuralian (and Pennsylvanian) glacial strata in Western Australia, its precise age remains poorly constrained, especially in terms of correlation to international stages. Although the Calytrix fauna lies within the Pseudoreticulatispora confluens Palynozone, the only real constraint on its age (and that of the associated glacially influenced strata) is from Sakmarian (Sterlitamakian) and stratigraphically younger faunas. A brief review of radiometric ages from correlative strata elsewhere in Gondwana shows that those ages need to be updated. The presence of Asselian strata and the position of the Carboniferous?Permian boundary remain unclear in Western Australia.

Arturo César Taboada [], CONICET-Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB), Facultad de Ciencias Naturales, Sede Esquel, Universidad Nacional de la Patagonia ‘San Juan Bosco’, Edificio de Aulas, Ruta Nacional 259, km. 16,5, Esquel U9200, Chubut, Argentina; Arthur Mory [], Geological Survey of Western Australia, 100 Plain Street, East Perth, WA 6004, School of Earth and Environment, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; Guang R. Shi [], School of Life and Environmental Sciences, Deakin University, Melbourne Burwood Campus, 221 Burwood Highway, Burwood, Victoria 3125, Australia; David W. Haig [], School of Earth and Environment (M004), The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia; María Karina Pinilla [], División Paleozoología Invertebrados, Museo de Ciencias Naturales de La Plata, Paseo del Bosque s/n, 1900 La Plata, Buenos Aires, Argentina.  相似文献   

20.
Coutts, F.J., Gehling, J.G. & García-Bellido, D.C., August 2016. How diverse were early animal communities? An example from Ediacara Conservation Park, Flinders Ranges, South Australia. Alcheringa 40, xxx–xxx. ISSN 0311-5518

Fossils of the Ediacara biota record the earliest evidence of animal communities and, as such, provide an invaluable glimpse into the abiotic and biotic processes that helped shape the evolution of complex life on Earth. A diverse community of Ediacaran macro-organisms is preserved with high resolution in a fossil bed recently excavated from north Ediacara Conservation Park (NECP) in the Flinders Ranges, South Australia. Many of the commonly described Ediacaran taxa from the Flinders Ranges are represented on the bed surface and include: Parvancorina, Rugoconites, Spriggina, Dickinsonia, Tribrachidium, Kimberella, Charniodiscus and Yorgia, including two new taxa. Numerous additional fossil-bed fragments from the same locality were analysed that preserve a similar suite of taxa and shared sedimentology. On all surfaces, preserved microbial mat appeared complex, both in topography and in texture, and the unique combination of fine grainsize, high diversity and trace fossils provide insights into the palaeoecology of the ancient organisms that lived during the Ediacaran Period some 550 Ma. Several trace fossils are overlapped by body fossils, indicative of successive events, and complex organismal behaviour. The complexity of this fossil surface suggests that the primordial community was relatively mature and possibly at late-stage succession.

Felicity J Coutts [], School of Biological Sciences, University of Adelaide, Adelaide 5000, South Australia, Australia. James G Gehling [], South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia. Diego C. García-Bellido [], South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia.  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