Founded 1934 by Prof. Dr Stefan Bončev
A Geo-Sciences Journal of the Geological Institute “Strashimir Dimitrov”, Bulgarian Academy of Sciences
Official Journal of the Carpathian-Balkan Geological Association

Low-diversity conodont and cephalopod assemblages from the Silurian of the Tinduf Basin, Western Sahara

Pages: 
pp. 45-50
Annalisa Ferretti
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
Paolo Serventi
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
Giulia Ferrari
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
Maria Giovanna Corriga
Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy
Carlo Corradini
Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy
Abstract: 

A peculiar cephalopod slab collected in Western Sahara hosts almost monospecific cephalopod and conodont associations, preliminarily attributed to the Ludfordian based on the occurrence of Wurmiella sp. A Corriga et al., 2021. Arionoceras submoniliforme (Meneghini, 1857) dominates the nautiloid fauna that reveals a clear bimodal orientation. The microfacies analysis documents a cephalopod packstone associated with abundant skeletal elements coated by micrite. The origin and significance of this association are discussed and possibly interpreted as a post-Lau Event fauna, still deeply affected by the extinction event.

Keywords: 

mass association, coated grains, paleoecology, Paleozoic, Gondwana

DOI: 
10.52321/GeolBalc.53.3.45
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VOLUME 53 (3)/December 2024

DETAILS

Elitsa Zareva
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Valeri Sachanski
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Lubomir Metodiev
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Boris Valchev
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Dimitar Sachkov
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Miroslav Slavchev
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Daniel Yanev
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria

Iskar Gorge and Ledenika cave - a brief overview

Stefka Pristavova
University of Mining and Geology, Studentski Grad, Prof, Boyan Kamenov Str., 1700 Sofia, Bulgaria
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Kamelia Marinova
University of Mining and Geology, Studentski Grad, Prof, Boyan Kamenov Str., 1700 Sofia, Bulgaria

Rocks and buildings in the Sofia City center - a geological and historical city tour

Valeri Sachanski
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria; Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Elitsa Zareva
University of Mining and Geology, Studentski Grad, Prof. Boyan Kamenov Str., 1700 Sofia, Bulgaria

The Silurian and the Devonian in the Svoge Unit, Western Bulgaria – a brief overview

Juan Carlos Gutiérrez-Marco
Instituto de Geociencias CSIC-UCM, Severo Ochoa 7, 28040 Madrid, Spain
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Sara Romero
Área de Paleontología GEODESPAL, Facultad de Ciencias Geológicas UCM, José Antonio Novais 12, 28040 Madrid, Spain
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Sofia Pereira
Departamento de Ciências da Terra, Centro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
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Petr Štorch
Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00 Praha 6, Czech Republic

The Ordovician‒Silurian boundary beds in the El Pintado section (Sierra Morena de Sevilla Global UNESCO Geopark, SW Spain)

Annalisa Ferretti
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
|
Paolo Serventi
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
|
Giulia Ferrari
Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Modena e Reggio Emilia, Via Campi 103, I-41125 Modena, Italy
|
Maria Giovanna Corriga
Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy
|
Carlo Corradini
Dipartimento di Matematica, Informatica e Geoscienze, Università degli Studi di Trieste, Via Weiss 2, I-34128 Trieste, Italy

Low-diversity conodont and cephalopod assemblages from the Silurian of the Tinduf Basin, Western Sahara

Polina Andreeva
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Middle and Upper Devonian depositional settings of the Moesian Terrane (northern Bulgaria)

Pavel B. Kabanov
Geological Survey of Canada, 303–33rd Street N.W., Calgary, Alberta T2L 2A7, Canada

The Devonian of Western Canada Sedimentary Basin: enormous yet underused archive of outcrops and exploration wells for fundamental research

Rezeda Tagarieva
Institute of Geology, Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences (IG UFRC RAS), 16/2 Karl Marx Str., 450000 Ufa, Russia

Conodont biostratigraphy of the Famennian Makarovian Regional Substage in the Kuk-Karauk section, west slope of the Southern Urals

Pavel B. Kabanov
Geological Survey of Canada, 303–33rd Street N.W., Calgary, Alberta T2L 2A7, Canada
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Sezim N. Mustapayeva
Satbayev University, Satbayev 22, Almaty, Kazakhstan
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Svetlana V. Nikolaeva
Natural History Museum, London, SW7 5BD, UK

An Uppermost Famennian section with ammonoids in Karaganda Region, Central Kazakhstan

Hristo Kiselinov
Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Evolution of the Paleozoic (Silurian-Devonian?) Sredogriv metamorphics, NW Bulgaria

Ulrich Jansen
Senckenberg Research Institute and Natural History Museum, Senckenberganlage 25, 60325 Frankfurt am Main, Germany

Revised taxonomy and biostratigraphy of brachiopods from the upper Přídolí-lower Eifelian of the Rhenish Massif (Germany)

John Marshall
School of Ocean and Earth Science, University of Southampton, National Oceanography Centre, Waterfront Campus, Southampton, UK, SO14 3ZH
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Henning Blom
Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Grzegorz Niedźwiedzki
Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Martin Qvarnström
Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden
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Robert Gess
Albany Museum, Grahamstown, Province of the Eastern Cape, Republic of South Africa
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Jessica Whiteside
Department of Geological Sciences, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, USA
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Per Ahlberg
Department of Organismal Biology, Uppsala University, Norbyvägen 18A, SE-752 36, Uppsala, Sweden

The palaeoenvironmental record through a Devonian-Carboniferous boundary super-monsoon lake

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