1883
Porambonites schmidti sp. n. — Noetling, pp. 356-362, fig. pl. 15
1921
Porambonites schmidti Noetling — Bekker, fig. pl. 4: 3-4
1930
Porambonites schmidti Noetling — Teichert, pp. 197-198, fig. pl. 12: 37-40
1932
Porambonites schmidti Noetling — Schuchert & Cooper, pp. 102, fig. pl. 14, figs 20-21, 27-28
1949
Porambonites schmidti Noetling — Lesnikova, pp. 206, fig. pl. 35: 5-6; pl. 34: 2-3
1957
Porambonites (Isorhynchus) schmidti Noetling — Spjeldnaes, pp. 223-224, fig. pl. 1: 7-8, 10
2002
Porambonites (Porambonites) schmidti Noetling — Carlson, pp. 947, fig. figs: 635: 1h-i