1. Landman, N. H., Grier, J. W., Cochran, J. K., Grier, J. C., Petersen, J. G. and Towbin, W. H., 2018, Nautilid nurseries: hatchlings and juveniles of Eutrephoceras dekayi from the lower Maastrichtian (Upper Cretaceous) Pierre Shale of east-central Montana: Lethaia, vol. 51, p. 48–74.
2. Scott, G. R., Cobban, W. A. and Merewether, E. A., 1986, Stratigraphy of the Upper Cretaceous Niobrara Formation in the Raton Basin, New Mexico: New Mexico Bureau of Mines and Mineral Resources, Bulletin 115, 34 p.
3. Sealey, P. L. and Lucas, S. G., 2019, Late Cretaceous (Cenomanian-Campanian) ammonite systematic paleontology and biostratigraphy, southeastern San Juan Basin, Sandoval County, New Mexico: New Mexico Museum of Natural History and Science Bulletin 80, 245 p.
4. Sealey, P. L. and Lucas, S. G., 2022, Late Cretaceous (Campanian-Maastrichtian) ammonites from the Pierre Shale, Raton Basin, northeastern New Mexico and southeastern Colorado: New Mexico Museum of Natural History and Science Bulletin 91, 183 p.