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Palaeobiogeography, palaeoecology and evolution of Lower Ordovician conulariids and Sphenothallus (Medusozoa, Cnidaria), with emphasis on the Fezouata Shale of southeastern Morocco
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文摘

The Fezouata Shale contains Archaeoconularia, Eoconularia and Sphenothallus.

Eoconularia sp. attached at their apex to shells of phosphatic brachiopods.

Archaeoconularia and Eoconularia are also present in coeval strata of Wales.

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