Opis

Shell evolute, undivided muscle scars best developed ventrally, siphuncle ventral to central.

Synonimy
Estonioceratidae Hyatt, 1900; Plectoceratidae Hyatt, 1900; Apsidoceratidae Hyatt, 1884; Barrandeoceratidae Foerste, 1925

Zasięg czasowy

Literatura

Dzik, J. 1984. Phylogeny of the Nautiloidea. Palaeontologia Polonica 45, 1-255.

King, A.H. 2014. Taxonomic review of early Darriwilian estonioceratids (Tarphyceratida, Nautiloidea) from Sweden, estonia, and the ‘Diluvium-Geschiebe’ of northern Germany and Poland. Denisia 32, 47–57.