Leonova, T. B. (May 2018). "Revision of the Late Paleozoic Family Vidrioceratidae Plummer et Scott (Ammonoidea)". Paleontological Journal. 52 (3): 234–244. doi:10.1134/S0031030118030073.
Wanner, J. (1 January 1956). "Stratigraphy of Portuguese Timor". Zeitschrift der Deutschen Geologischen Gesellschaft. 108 (1): 109–140. doi:10.1127/zdgg/108/1956/109.
jstor.org
Miller, A. K. (1945). "Some exceptional Permian ammonoids from west Texas". Journal of Paleontology. 19 (1): 14–21. JSTOR1299163.