Biochronology of the autochthonous Lower Cambrian in the Laisvall–Storuman area, Swedish Caledonides

2001 ◽  
Vol 138 (4) ◽  
pp. 435-453 ◽  
Author(s):  
M. MOCZYDŁOWSKA ◽  
S. JENSEN ◽  
J. O. R. EBBESTAD ◽  
G. E. BUDD ◽  
M. MARTÍ-MUS

New records of phytoplankton (acritarchs), ichnofossils and olenellid trilobites have been studied from the autochthonous upper Neoproterozoic–Lower Cambrian successions along the Caledonian Thrust Front in the Laisvall–Storuman region of northern Sweden. The fossils are from a newly examined natural outcrop at Bergmyrhobben near Lake Storuman, and from previously described fossiliferous outcrops at Delliknäs and Mt. Assjatj, the Laisvall mine and the Maiva borehole successions in the Laisvall area. Acritarch assemblages are recorded throughout the Grammajukku Formation. They are age-diagnostic for the Skiagia–Fimbriaglomerella acritarch Zone, time-equivalent to the Schmidtiellus mickwitzi trilobite Zone (the lower part of the formation), and the Heliosphaeridium–Skiagia acritarch Zone corresponding to the Holmia kjerulfi trilobite Zone (the upper part of the formation). The acritarch record from the Storuman area documents the presence of strata contemporaneous to the Schmidtiellus mickwitzi Zone for the first time in the Scandinavian Caledonides. This zone was previously only recognized in the platform regions of the Baltica palaeocontinent. The ichnofossils from the upper Såvvovare Formation, including ?Harlaniella, Phycodes, Gyrolithes and Palaeophycus ichnogenera, allowed the base of the Cambrian System to be determined within the Maiva Member and the coeval Kautsky Ore Member in the subsurface successions, and to attribute this part of the formation to the Lower Cambrian Platysolenites antiquissimus faunal Zone of Baltica. The trilobite fauna from the Storuman area, attributed tentatively to Holmia sp., occurs at the lowermost stratigraphic level among olenellids in the Caledonides. The range of this species, estimated from the concurrent acritarch biostratigraphy, is within the Schmidtiellus mickwitzi Zone. The stratigraphic significance of the acritarch assemblages and ichnofossils is analysed and the biochronology of the Grammajukku Formation and the upper Såvvovare Formation is discussed in detail in the context of Lower Cambrian zonation in Baltica.

1998 ◽  
Vol 29 (4) ◽  
pp. 361-382 ◽  
Author(s):  
Peter H. Adler ◽  
Björn Malmqvist ◽  

AbstractA chromosomal and morphological study of the black flies of northern Sweden revealed six genera and 47 species, of which 12 species represent new records for the country. The total number of species now recorded from Sweden is 61. Cnephia eremites is recorded from the Palearctic Region for the first time. New chromosomal information is provided for about 40% of the species in northern Sweden. A lectotype is designated for Simulium annulitarse which is shown to be a member of the S. tuberosum species group. The northern Swedish fauna is dominated by the genus Simulium (81 %) and by mammalophilic species (49%). Approximately 34% of the species in northern Sweden have a Holarctic distribution.


1984 ◽  
Vol 121 (3) ◽  
pp. 229-253 ◽  
Author(s):  
M. D. Brasier

AbstractThe Lower Cambrian sequence at Nuneaton is outlined, paying particular attention to the 2 m thick Home Farm Member (including the Hyolithes Limestone) and its faunal succession at the type locality, Woodlands Quarry, Hartshill. There follows the first modern description and illustration of microfossils and small shelly fossils from this member. Of thirty-two species covered here, twenty are described and illustrated from Nuneaton for the first time and eight of these are new records. The varied fauna includes phosphatic and calcareous microproblematica (especially Coleoloides typicalis), protoconodonts, agglutinated foraminifera, cap-shaped molluscs, primitive bivalves, hyoliths, inarticulate brachiopods and sponges. The fauna has affinity with fossils in the top Tommotian to lower Atdabanian rocks from Siberia and China, from the Baltic area and the belt from southeast Newfoundland to Massachusetts.


2017 ◽  
Vol 43 (2) ◽  
pp. 271
Author(s):  
Luis Gonzalo Salinas-Jiménez ◽  
José Ismael Rojas-Peña ◽  
Diana Paola Osorio-Ramírez ◽  
Clara Inés Caro-Caro

There is extensive research of the Ephemeroptera communities taxonomy and ecology in the Andean region of Colombia. However, other regions such as the Orinoquia have been insufficiently studied. From this region, in the Meta department, four species have been registered: Varipes lasiobrachius Lugo-Ortiz & McCafferty, Coryphorus aquilus Peters, Miroculis (Atroari) colombiensis Savage & Peters and Tricorythopsis rondoniensis (Dias, Cruz & Ferreira). The main objective of this study is to report for the first time for this region the species: Mayobaetis ellenae (Mayo), Hydrosmylodon primanus (Eaton), Haplohyphes baritu Domínguez, Camelobaetidus edmundsi Dominique, Mathuriau & Thomas and Nanomis galera Lugo-Ortiz & McCafferty.


2019 ◽  
Vol 71 ((suppl.1)) ◽  
pp. 209-243
Author(s):  
J.K.H. Koh ◽  
D.J. Court

This paper discusses the preliminary results of the first comprehensive survey of the spiders of the Bukit Timah Nature Reserve (BTNR) in Singapore. Two plots were established in each of the three zones of vegetation, viz., primary forest, old secondary forest, and maturing secondary forest. They were repeatedly sampled over an 18-month period. Sorting of the collection so far suggests that the three vegetation zones harbour rather different spider assemblages. Only ~9% of the total spider fauna recovered was shared by all three zones. The results have also yielded a preliminary picture of dominance, abundance and rarity. Although first intended to obtain a baseline for future quantitative analyses, the survey became a testing ground to modify and refine methodology so as to conduct future quantitative surveys with greater scientific rigour. Taxonomic work on the samples so far shows that the spiders in the BTNR span over 43 families, of which six families are listed for the first time in Singapore. The tally is summarised in an interim checklist of BTNR spiders. The checklist, with a total of 317 entries, shows that there are 158 described species of spiders in BTNR, of which 25 species are new records for Singapore. Another 159 morphospecies are provisionally recognised as distinct species, some of which may be new to science. Our observations during the survey have allowed us to provide a narrative of BTNR spider diversity against a backdrop of their microhabitat specialisation.


2020 ◽  
Vol 54 (2) ◽  
pp. 387-396
Author(s):  
I. V. Stavishenko

The paper provides data on records of 29 species of aphyllophoroid fungi new for the the Khanty-Mansi Autonomous Area — Yugra. Among them 10 species (Amaurodon cyaneus, Amyloxenasma allantosporum, Asterostroma laxum, Byssoporia terrestris, Paullicorticium pearsonii, Pseudomerulius montanus, Sistotrema sernanderi, Skeletocutis alutacea, S. ochroalba, Tubulicrinis orientalis) are published for the first time for Siberia, and 3 species (Scytinostroma praestans, Tomentellopsis zygodesmoides, Tubulicrinis strangulatus) are new for the West Siberia. Data on their locations, habitats and substrates in region are indicated. The specimens are kept in the Museum of the Institute of Plant and Animal Ecology of the Ural Branch of the RAS (SVER).


2013 ◽  
Vol 47 ◽  
pp. 135-142
Author(s):  
E. S. Popov

Three rare species of discomycetes in the family Hyaloscyphaceae are reported from Central Russia (Oryol and Bryansk Regions). Proliferodiscus tricolor is recorded for the first time in Russia. Comments are made on Aeruginoscyphus sericeus and Eriopezia caesia previously reported only from Moscow Region and North Caucasus respectively.


2016 ◽  
Vol 50 ◽  
pp. 187-202
Author(s):  
T. Yu. Svetasheva ◽  
E. S. Popov ◽  
E. A. Muravyova

This paper is the next one in the series of publications devoted to fungal diversity of the Tula Region. The checklist contains data on 94 species and includes data on location, habitat, substrate and voucher specimen number. 85 species are recorded for the first time for the Tula Region. The record of Otidea flavidobrunneola is the first for Russia.


2019 ◽  
Vol 28 (2) ◽  
pp. 267-276
Author(s):  
A.I. Khalaim

A new data on distribution of 19 species of Tersilochinae (Ichneumonidae) belonging to the genera Allophrys Förster (four species), Aneuclis Förster (five spp.), Diaparsis Förster (eight spp.) and Tersilochus Holmgren (two spp.) in the Afrotropical Region are provided. Tersilochus abyssinicus Khalaim, 2006, syn. nov. is synonymised with T. moestus Holmgren, 1868. The subfamily Tersilochinae is recorded from Benin, Côte d’Ivoire, Mozambique, Niger, Nigeria, Sierra Leone, Togo, Zambia and Yemen for the first time.


2018 ◽  
Vol 27 (2) ◽  
pp. 287-288
Author(s):  
S.V. Kuzhuget

Three species of true bugs (Heteroptera), Blepharidopterus angulatus, Phytocoris nowickyi and Scolopostethus thomsoni, new for the Krasnoyarsk Territory, were found in the Western Sayan Mountains. Two species, Drymus sylvaticus and Odontoscelis fuliginosa, are recorded in the Tyva Republic for the first time; this is the first finding of the genus Drymus in the region.


2014 ◽  
Vol 23 (2) ◽  
pp. 242-247
Author(s):  
A.N. Zinovjeva

Twenty seven species of the true bugs from the families Anthocoridae, Reduviidae, Miridae (Cimicomorpha), Coreidae, Thyreocoridae, Acanthosomatidae, and Pentatomidae (Pentatomomorpha) are recorded from the Northeast of European Russia for the first time. The family Thyreocoridae is for the first time reported from the region.


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