| 1872a Eucyrtidium trachelius - Ehrenberg p . 312 |
| 1872b Eucyrtidium trachelius - Ehrenberg pl. 7, fig. 8 |
| 1887 Calocyclas amicae - Haeckel p. 1382; pl.74, fig.2 |
| 1887 Calocyclas vestalis - Haeckel p. 1382-1383; pl. 74, fig. 3 |
| 1887 Theocyrtis trachelius - Haeckel p. 1405 |
| 1966 Calocyclas amicae - Benson p. 487-489; pl. 33, figs. 8-9 |
| 1967 Theocorythium trachelium trachelium - Nigrini p. 79-81; pl. 8, fig. 2; pl. 9, fig. 2 |
| 1970 Theocorythium trachelium trachelium - Nigrini p. 172; pl. 4, fig. 10 |
| 1971 Calocyclas amicae - Casey pl. 23.1, figs. 15-16 |
| 1971 Theocorythium trachelium - Petrushevskaya p. 232; fig. 117, VI; fig. 118, I-II |
| 1974 Theocorythium trachelium - Renz p. 798; pl. 19, fig. 28 |
| 1976 Theocorythium trachelium - Renz p. 147-148; pl. 6, fig. 13 |
| 1977 Theocorythium trachelium - Molina-Cruz p. 338; pl. 8, fig. 4 |
| 1978 Theocorythium trachelium - Riedel and Sanfilippo p. 76; pl. 9, fig. 17 |
| 1979 Theocorythium trachelium - Kling p. 313; pl. 2, figs. 23-24 |
| 1979 Theocorythium trachelium trachelium - Nigrini and Moore p. N93-N94; pl. 26, fig. 2 |
| 1980 Theocorythium trachelium trachelium - Johnson and Nigrini p. 135; pl. 4, fig. 3 |
| 1982 Theocorythium trachelium - Molina-Cruz p. 996; pl. 5, fig. 6 |
| 1983 Theocorythium trachelium trachelium - Benson p.509 |
| 1984 Theocorythium trachelium trachelium - Nishimura and Yamauchi p. 64; pl. 38, figs. 9-12 |
| 1989 Theocorythium trachelium - Cheng and Yeh p. 187; pl. 10, figs. 11-13 |
| 1991 Theocorythium trachelium trachelium - Takahashi p. 121; pl. 40, figs. 15-16 |
| 1995 Theocorythium trachelium - van de Paverd p. 246; pl. 74, figs. 16-17 |
| 1998 Theocorythium trachelium - Boltovskoy fig. 15.160 |
