Traits name details
original description
Greco, B. (1916). Fauna cretacea dell'Egitto raccolta dal Figari Bey. Parte seconda: Pisces, Cephalopoda (addenda) e Gastropoda. <em>Palaeontographica Italica.</em> 22: 103-169, pls. 15-19., available online at https://www.biodiversitylibrary.org/page/33084143 page(s): p. 119-120, n. 1, pl. 15, fig. 8a-c. [details]
additional source
Awad , G. H.; Abed , M. (1968). Biostratigraphical zoning of the Lower Tertiary in the Dakhla Oasis. <em>Egyptian Geological Survey, Special Paper.</em> 47:1-63, 8 pls. page(s): p. 34, pl. 2, fig. 9. [details] Available for editors 
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