1886
Ptilodictya subrecta — Ulrich, pp. 63
1893
Ptilodictya subrecta — Ulrich, pp. 168, fig. 12:5-29
1911
Escharopora subrecta (Ulrich) — Bassler, pp. 116, fig. text fig. 44
1970
Escharopora cf subrecta (Ulrich) — Rõõmusoks, pp. 327, fig. table 17
2009
Escharopora subrecta — Pachut & Fisherkeller, pp. 404