1929
Actinostroma pexisum sp. nov. — Yavorsky, pp. 82, fig. 6:1-2
1953
Actinostroma cf. pexisum Yavorsky — Riabinin, pp. 13, fig. 1:1-2
1966
Densastroma pexisum (Yavorsky,1929) — Nestor
, pp. 37, fig. 13:1; 14:1-2 1968
Densastroma pexisum (Yavorsky) — Mori
, pp. 72, fig. 11:1-7; 12:1-2; 13:1-2 1991
Densastroma pexisum (Yavorsky,1929) — Stock, pp. 903, fig. 4.5, 4.6
2007
Densastroma pexisum (Yavorsky,1929) — Mõtus et Hints, O., pp. 43, 45, 47