Early Devonian actiniarian trace fossils (Conichnus conicus) from the Anti-Atlas of Morocco

Early Devonian actiniarian trace fossils (Conichnus conicus) from the Anti-Atlas of Morocco

Shaly and marly sedimentary rocks of late Lochkovian to Pragian and latest Emsian age yielded carbonatic conical structures several centimeters in size. These are filled with a coarse- grained bioclastic sediment with concentric conical fill-structures. We interpret these structures as the trace-fos...

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Veröffentlicht in:Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen 2018-11, Vol.290 (1-3), p.65-74
Hauptverfasser: Hoffmann, René, Klug, Christian
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Sprache:eng
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devonian
ichnofacies
ichnofossils
palaeoecology
tafilalt
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Klug, Christian
description Shaly and marly sedimentary rocks of late Lochkovian to Pragian and latest Emsian age yielded carbonatic conical structures several centimeters in size. These are filled with a coarse- grained bioclastic sediment with concentric conical fill-structures. We interpret these structures as the trace-fossil Conichnus, which usually is interpreted as a trace of soft-bottom dwelling sea-anemones (Actiniaria). These findings show that soft-bodied coelenterates were a common element of benthic ecosystems representing the softground marine Cruziana or Skolithos ichnofacies of the northern Gondwana shelf during the Early Devonian.
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ichnofacies
ichnofossils
palaeoecology
tafilalt
title Early Devonian actiniarian trace fossils (Conichnus conicus) from the Anti-Atlas of Morocco
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