1913 Lithornithium clausum - Popofsky p. 393-395; text fig. 111 |
1913 Theoconus zancleus - Popofsky p. 397-398; pl. 38, figs. 6-7 |
1966 Theoconus zancleus - Benson p. 482-485; pl. 33, fig. 4 (not fig. 5) |
1972 Pterocorys clausus group - Petrushevskaya and Koslova p. 545; pl. 36, figs. 16-18 |
1973 Theoconus zancleus - Kling p. 639; pl. 5, figs. 9-11; pl. 12, figs. 7-9 |
1979 Pterocorys clausus - Kling p. 311; pl. 2, fig. 22 |
1979 Pterocorys zancleus - Nigrini and Moore pl. 25, figs. 11a-11b |
1980 Pterocorys clausus - Boltovskoy and Riedel p. 127; pl. 5, fig. 19 |
1982 Pterocorys zancleus - Molina-Cruz p. 996; pl. 5, figs. 2-3 |
1983 Pterocorys zancleus - Benson p. 507 |
1988 Pterocorys clausus - Caulet and Nigrini p. 229; pl 1, figs. 6-10 |