Subfamiliar and tribal identifications follow Grndel & Kozur (1971), while the generic is based on Becker (1990). Occurrences herein described correspond to the first early Cretaceous records of Praebythoceratina Grndel & Kozur, 1972, hitherto restricted to the TriassicJurassic. Most specimens of Praebythoceratina deltalata sp. nov. were found broken, thereby limiting the designation of type specimens. This species is very similar in general layout to Bythoceratina umbonatoides (Kaye, 1964),

B. umbonata (Williamson, 1847) and Monoceratina longispina (Bosquet, 1854) from the AlbianCenomanian of England (Kaye 1964, 1965; Weaver 1982). However, they differ in the position of the dorsal tubercle (postero-dorsal in the former, antero-dorsal in the latter) and in the carina-like morphology of the spine basis in P. deltalata sp. nov. (absent in B. umbonatoides). Several species, including P. amsittenensis (Andreu-Boussut, 1991) comb. nov. from the Albian of Morocco (Andreu-Boussut 1991), B. tamarae Rosenfeld, 1974 and B. avnonensis Rosenfeld, 1974 from the upper Cenomanian of Israel

(Rosenfeld & Raab 1974), are distinguished from P. deltalata sp. nov. by the same features. Donze (1964) illustrated Monoceratina sp. A from the Berriasian of France in dorsal view, which is strongly similar. However, there is not enough information to perform length/height/width measurements of these specimens, and therefore they cannot safely be assumed to belong to P. deltalata sp. nov.

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Praebythoceratina deltalata was named by Antonietto et al. (2016) [Antonietto et al. (2016) age data: Cretaceous, Aptian-Albian. Reference number: 64783.]. Its type specimen is CP-683, a valve (Right valve), and it is a 3D body fossil.