Species
Quadrotheca quadrangularis (Holm, 1893)
Synonymy list
1893 Hyolithus (Orthotheca) quadrangularis — Holm , pp. 66 , fig. 6:1-5
2002 Quadrotheca quadrangularis (Holm, 1893) — Malinky , pp. 543 , fig. 4:15-19
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Mollusca |
| Class | Hyolitha |
| Order | Orthothecida |
| Family | Quadrothecidae |
| Genus | Quadrotheca |
| Species | quadrangularis |