Exotic trilobites from the uppermost Cambrian Series 3 and lower Furongian of Sweden

Żylińska, A.; Weidner, T.; Ahlgren, J.; Ahlberg, P.

doi:10.1515/agp-2015-0002

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Tytuł artykułu

Exotic trilobites from the uppermost Cambrian Series 3 and lower Furongian of Sweden

Autorzy

Żylińska A. , Weidner T. , Ahlgren J. , Ahlberg P.

Treść / Zawartość

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Identyfikatory

DOI

10.1515/agp-2015-0002

Warianty tytułu

Języki publikacji

Abstrakty

Seventeen taxa of exotic trilobites representing eight families are described from the olenid- and agnostoid-dominated strata of the uppermost Cambrian Series 3 and lower Furongian alum shale facies of Sweden and from glacial erratic boulders of Denmark. Only five taxa are assigned to species level, i.e., Maladioidella abdita (Salter, 1866), Olentella rara (Westergård, 1922), Pedinocephalus peregrinus (Henningsmoen, 1957), Ptychoparia pusilla (Westergård, 1922), and Westergaardella olenorum (Westergård, 1922), whereas the others are left under open nomenclature or remain unrecognized. Most are described for the first time from the Cambrian of Scandinavia. Their affinities point to a strong connection with East Gondwana, Laurentia, Kazakhstania and Siberia. Exotic trilobites appear in the succession directly after periods of very low oxygen concentration in the Alum Shale Sea; their occurrences correspond to the ranges of agnostoid arthropods in the succession and seem to be linked to global transgressive events causing an influx of cool and/or oxygen-depleted waters onto the shelf of the Baltica palaeocontinent.

Słowa kluczowe

Trilobita Cambrian Series 3 Furongian Alum Shale glacial erratic boulders Sweden Denmark Scandinavia Exotic trilobites

trylobity trzeci oddział kambru Furong łupek ałunowy polodowcowe głazy narzutowe Szwecja Dania Skandynawia trylobity egzotyczne

Wydawca

Faculty of Geology of the University of Warsaw
Komitet Nauk Geologicznych PAN

Czasopismo

Acta Geologica Polonica

Rocznik

2015

Tom

Vol. 65, no. 1

Strony

21--67

Opis fizyczny

Bibliogr. 252 poz., il.

Twórcy

autor

Żylińska A.

anna.zylinska@uw.edu.pl

Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, PL-02-089 Warszawa, Poland

autor

Weidner T.

to.we@paradis.dk

Ravnholtvej 23, Rårup, 7130 Juelsminde, Denmark

autor

Ahlgren J.

jompa.ahlgren@telia.com

Backlyckevägen 4B, SE-533 94, Hällekis, Sweden

autor

Ahlberg P.

per.ahlberg@geol.lu.se

Department of Geology, GeoBiosphere Science Centre, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden

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