UN BRYOZOAIRE PERFORANT DE L'OXFORDIEN : IMMERGENTIA , LISSAJOUSI NOV. SP. (CTENOSTOMATA).WALTER B.1965; C.R. SOC. GEOL. FR; FRA; 1965, NUM. 0009, P. 286 A 287Miscellaneous

The polyphyletic origin of the «Cheilostomata» (Bryozoa)JEBRAM, D. H. A.Zeitschrift für Zoologische Systematik und Evolutionsforschung. 1992, Vol 30, Num 1, pp 46-52, issn 0044-3808Article

A DEVONIAN IMMERGENTIA (ECTOPROCTA CTENOSTOMATA) FROM OHIO.RICHARDS RP.1974; J. PALEONTOL.; USA; 1974, VOL. 48, NUM. 0005, P. 940 A 946Serial Issue