TYPE SPECIMENS OF INVERTEBRATE FOSSILS 57 



Discos orus- - Continued 

 perexpansum Foerste 



Foerste, A. F., 1934: p. 175, 176, pi. 34, figs. 5a, b. 



Holotype 81923 



Clinton, Dayton Ls. Mbr. Ohio 



Dolorthoceras 



? aff. D. crebriliratum (Girty) 



Gordon, Mackenzie, Jr., 1957: p. 24, pi. 2, figs. 8-10. 



Figured specimen 118944 



Alapah Ls., black chert and shale mbr. Alaska 



medium Gordon 



Gordon, Mackenzie, Jr., 1957: p. 23, 24, pi. 2, figs. 14, 21. 



Holotype and paratype 118937, 118938 



Alapah Ls., black chert and shale mbr. Alaska 



solitarium Flower 



Flower, R. H., 1939b: p. 105, pi. 1, fig. 9; pi. 4, fig. 6. 



Holotype 96778 



Tully Ls., West Brook Mbr. New York 



? sp. 



Gordon, Mackenzie, Jr., 1957: p. 25. 



Described and measured specimen 118939a 



Lisburne (?) Gr. Alaska 



Described and measured specimen 118939b 



Wachsmuth Ls. Alaska 



Described and measured specimen 118939c 



Alapah Ls. Alaska 



Domatoceras 



northropi Miller and Unklesbay 



Miller, A. K., and Unklesbay, A. G., 1942: p. 735, pi. Ill, figs. 7, 8. 



Holotype and paratype 111917,111918 



Chupadera Fm. New Mexico 



umbilicatum Hyatt 



Hyatt, Alpheus, 1891: p. 343-345, figs. 45-47. 



Holotype 23870 



"Lower Coal Measures" Kansas 



sp. 



Miller, A. K.. and Youngquist, Walter, 1949: p. 46, 47, pi. 15, figs. 1-7. 

 Figured specimens 120716a-d 



Jacque Mountain Ls. Colorado 



