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A blind trilobite with Baltic affinities from Cambrian Series 3 of the Iberian Chains, Spain, and its stratigraphical and palaeobiogeographical significance
- Chirivella Martorell, Juan B. (author)
- Linan, Eladio (author)
-
- Ahlberg, Per (author)
- Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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- Gozalo, Rodolfo (author)
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- (creator_code:org_t)
- 2015-10-08
- 2015
- English.
- In: GFF. - : Informa UK Limited. - 2000-0863 .- 1103-5897. ; 137:3, s. 175-180
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Three cranidia of a conocoryphid trilobite are described from the lower Caesaraugustan Regional Stage (upper part of provisional Cambrian Stage 5 within Cambrian Series 3) in the Iberian Chains, Spain. The material is from the upper part of the Mansilla Formation and the base of the overlying Murero Formation. It closely resembles Bailiella tenuicincta (Linnarsson, 1879), which has previously been described from the Ptychagnostus gibbus (Cambrian Stage 5) and lower P. atavus zones (lower Drumian Stage) of Baltica (Sweden and Bornholm), and from the P. atavus Zone of West Avalonia (Newfoundland). The record of B. cf. tenuicincta from the Mediterranean margin of West Gondwana provides additional evidence for considering the Acado-Baltic region a discrete biogeographical province, at least during the Cambrian 5 and Drumian ages.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
Keyword
- Trilobites
- Conocoryphidae
- systematics
- correlation
- palaeobiogeography
- middle Cambrian
- Iberian Chains
- Spain
Publication and Content Type
- art (subject category)
- ref (subject category)
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