1933
Amorphognathus ordovicica n.sp. — Branson & Mehl, pp. 127, fig. 10:38
1971
Amorphognathus ordovicicus Branson and Mehl, 1933 — Bergström, pp. 134-135, fig. 2:6-7
1971
Amorphognathus ordovicicus Branson and Mehl, 1933 — Bergström, pp. 134, fig. 2:6-7
1978
Amorphognathus ordovicicus Branson and Mehl, 1933 — Bergström, pp. 80, fig. 1-11
1980
Amorphognathus ordovicicus Branson and Mehl, 1933 — Orchard, pp. 16, fig. 4:1-13;17-18
1983
Amorphognathus ordovicicus Branson and Mehl, 1933 — Nowlan, pp. 660, fig. 2:16-17,22,25-27
1986
Amorphognathus ordovicicus Branson and Mehl, 1933 — Savage & Basset, pp. 69, fig. 84:1-21
1991
Amorphognathus ordovicicus Branson and Mehl, 1933 — Ferretti & Serpagli, fig. 1:1-9
2014
Amorphognathus ordovicicus Branson and Mehl, 1933 — Ferretti et al., pp. 819, fig. 7O; 12A-E