PARACALIGELLA Lipina, 1955
Type species: Paracaligella antropovi Lipina, 1955; OD.
Paracaligella Lipina, 1955 (*1863), p. 26.
Eocaligella Pronina. 1978 (*2480), p. 5 (name not available, ICZN Art. 13 (a) (i). no description). Eotikhinella Pronina, in Petrova and Pronina. 1980 (*2390 ),p. 56; type species: Eotikhinella orbiculata Pronina,1980; OD.
?Eocaligella Pronina, in Petrova and Pronina. 1980(*2390 ), p. 58; type species: Eocaligella isensis Pronina. 1980; OD.Proloculus oval to subspherical, followed by somewhat irregular tubular chamber that may be irregularly and partially divided by incipient septa, commonly alternating first from one side and then the other but rarely if ever entirely crossing the chamber lumen; wall calcareous, dark, and microgranular or questionably double layered with thin dark inner layer and thicker outer gray layer; aperture at the open end of the tube. U. Silurian (Ludlovian, Pridolian) to L. Carboniferous (U. Tournaisian); USSR; USA.
Remarks: The wall of Paracaligella was merely stated to be dark and granular, whereas Eotikhinella was said to be single layered and Eocaligella was said to have a double-layered wall. Although they appear very similar in general growth pattern, the double wall is not evident in the published figures of Eocaligella, and the true wall characteristics of all three taxa may have been modified in preservation.