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dc.contributor.authorHunter, Aaron
dc.contributor.authorLefebvre, B.
dc.contributor.authorNardin, E.
dc.contributor.authorVan Roy, P.
dc.contributor.authorZamora, S.
dc.contributor.authorRégnault, S.
dc.date.accessioned2017-01-30T12:45:41Z
dc.date.available2017-01-30T12:45:41Z
dc.date.created2016-09-12T08:58:55Z
dc.date.issued2010
dc.date.submitted2016-09-12
dc.identifier.citationHunter, A. and Lefebvre, B. and Nardin, E. and Van Roy, P. and Zamora, S. and Régnault, S. 2010. Preliminary report on new echinoderm Lagerstätten from the Upper Ordovician of the eastern Anti-Atlas, Morocco, pp. 23-30.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/24911
dc.description.abstract

Four distinct echinoderm Lagerstätten have recently been discovered in the Upper Ordovician of the eastern Anti-Atlas, Morocco. They have yielded hundreds of exquisitely preserved specimens. Their taphonomy and associated lithology both suggest rapid, in situ burial. Here we discuss the diverse range of assemblages represented and their significance to the diversity of echinoderms in the Lower Palaeozoic. The oldest assemblage (Izegguirene Formation, lowermost Caradoc) is dominated by eocrinoids, large ophiuroids, and mitrate stylophorans associated with rare crinoids. It shows strong similarities with slightly older faunas described from the underlying Ouine-Inirne Formation (Llandeilian) in the Central Anti-Atlas. The second assemblage (lower part of the Lower Ktaoua Formation, lower-middle Caradoc) is composed of eocrinoids (Cardiocystites) and small ophiuroids (encrinasterid indet.). The third assemblage was collected in the upper part of the Lower Ktaoua Formation (lowermost Ashgill). This ’starfish’ bed is dominated by ophiuroids and large solutes, associated with common diploporites and rhombiferans, and rare crinoids and mitrates. Finally, the youngest assemblage (lower part of Upper Tiouririne Formation, lower Ashgill) has yielded abundant remains of edrioasteroids and rhombiferans. © 2010 Taylor & Francis Group.

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dc.titlePreliminary report on new echinoderm Lagerstätten from the Upper Ordovician of the eastern Anti-Atlas, Morocco
dc.typeConference Paper
dcterms.dateSubmitted2016-09-12
dcterms.source.startPage23
dcterms.source.endPage30
dcterms.source.isbn9780415408196
curtin.digitool.pid244285
curtin.pubStatusPublished
curtin.refereedTRUE
curtin.departmentDepartment of Applied Geology
curtin.identifier.scriptidPUB-SE-DAG-AH-28289
curtin.identifier.elementsidELEMENTS-115077
curtin.accessStatusFulltext not available


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