Template:Aguirre-Urreta, 1998
- Aguirre-Urreta, M.B. 1998. The ammonites Karakaschiceras and Neohoploceras (Valanginian Neocomitidae) from the Neuquen Basin, West-Central Argentina. Journal of Paleontology 72(1): 39–59. DOI: 10.1017/S002233600002401X. JSTOR