Check-lists
* List of countries might not be complete
Links and literature
[1] Ebbestad J. O. R., Lefebvre B. (2015): An unusual onychochilid mollusc from the Ordovician (Tremadocian) Fezouata Formation, Morocco, Geobios 48, 427–43 [as Laeogyra alta Hynda, 1986]
Ebbestad J. O. R., Lefebvre B. (2015): An unusual onychochilid mollusc from the Ordovician (Tremadocian) Fezouata Formation, Morocco, Geobios 48, 427–43 [as Laeogyra alta Hynda, 1986]