| Authors | Year | Title |
| Dutro, J. | 1972 | Report on Referred Fossils |
| Kirk, Edwin | 1939 | No Title [Note by R.B. Blodgett: memorandum found on p. 2814 of Alaskan Fossil Reports, v. 12 (1935-1947), kept in Tech. Data Archives office in Anchorage, Alaska--Request for Examination of Fossils form on p. 2811, Localities of Invertebrates from Circle-Fortymile district on p. 2812] |
| Dutro, J.; Boucot, Arthur; Berdan, Jean | 1962 | Report on Referred Fossils |
| Lutke, Frithjof | 1981 | letter |