1962
Sleia equesteris — Martinsson, pp. 218-220, fig. 102, 103
1967
Sleia equesteris Martinsson, 1962 — Gailite et al., pp. 119, fig. 7:8a-c
1968
Sleia equesteris — Sarv, pp. 21, fig. 5:10-11
1972
Sleia equesteris Martinsson — Pranskevičius, pp. 78-79, fig. 11:1-2