Schemm-Gregory, M. (2008). A new delthyridoid spiriferid genus from the Dra Valley, Morocco, and its phylogenetic affinities (Brachiopoda, Lower Devonian). Paläontologische Zeitschrift. 82: 386-402.
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Schemm-Gregory, M.
2008
A new delthyridoid spiriferid genus from the Dra Valley, Morocco, and its phylogenetic affinities (Brachiopoda, Lower Devonian)