Taxon - Links and literature
Frýda J. (1997): Oldest representatives of the superfamily Cirroidea (Vetigastropoda) with notes on early phylogeny, J. Paleont., 71(5) [as Agnesiinae Knight, 1956]
Frýda J., Ferrová L. (2011): The oldest evidence of non-coaxial shell heterostrophy in the Class Gastropoda, Bulletin of Geosciences 86(4), 765–776 [as Agnesiinae Knight, 1956]