Authors Year Title
Furnish & Manger 1973 Type Kinderhook Ammonoids.
Proceedings of the Iowa Academy of Science, 80 (1): 15-24, fig.1-3, pl.1, Iowa City.
Miller & Unklesbay 1943 The siphuncle in Late Paleozoic amonoids.
Journal of Paleontology, 17 (1): 1-25, fig.1-9, pl.1-5; Tulsa,Oklahoma.
Miller & Collinson 1951 Lower Mississippian ammonoids of Missouri.
Journal of Paleontology, 25: 454-487, fig.1-14, pl.68-71; Tulsa, Oklahoma.