| 2024 | Orthogonum lineare Glaub, 1994 | Golubic et al. | 215 | 12a-c | Golubić et al., 2024 |
| 2024 | Orthogonum lineare Glaub, 1994 | Knaust & Schnick | 15 | 7K, L | Knaust & Schnick, 2024 |
| 2022 | Orthogonum lineare Glaub, 1994 | Wisshak et al. | | Table 2 | Wisshak et al., 2022a |
| 2022 | Orthogonum lineare Glaub, 1994 | Martinell & Domènech | 242 | | Martinell & Domènech, 2022 |
| 2014 | Orthogonum lineare | Thuy et al. | 2 | 1c | Thuy et al., 2014 |
| 2009 | Orthogonum lineare Glaub, 1994 | Vogel & Brett | 9 | 22, 24 | Vogel & Brett, 2009 |
| 2005 | Orthogonum lineare Glaub, 1994 | Wisshak et al. | 110 | 12A, B | Wisshak et al., 2005b |
| 1994 | Orthogonum lineare isp. nov. | Glaub | 103 | 37 | Glaub, 1994 |
| 1991 | ‘cylindrical morph’ | Hook | 131, 153 | 5-7c, d | Hook, 1991 |