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Showing results for tags 'ktaoua formation'.
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This fossil is of Late Ordovician age from the Upper Ktaoua Formation at Erfoud, Morocco. It is quite obviously a starfish, so is in the class Asteroidea. The starfish is about 8.5 cm across. I'd like to know if anyone has a more specific id, ideally the genus but otherwise the family or at least the order.
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Nice specimen of this interesting trilobite. The species name titan refers to this species being significantly bigger than the Czech typespecies Declivolithus alfredi. The distinctive head-shape of this suspension feeder shows this trilobite was probably adapted to fast swimming. Here's a paper describing the new species and the type locality: http://www.geology.cz/bulletin/fulltext/1649_Fortey_170930.pdf
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A nice Dictyonema flabelliforme dendroid graptolite from Oslo Fields in Norway. It's Tremadoc, Lower Ordovician in age and is thus maybe around 480 mya. Another angle :
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- amplexopora
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