Cichowolski, M.; Ambrosio, A.; Concheyro, A. (2005). "Nautilids from the Upper Cretaceous of the James Ross Basin, Antarctic Peninsula". Antarctic Science. 17 (2): 267. Bibcode:2005AntSc..17..267C. doi:10.1017/S0954102005002671.
Cichowolski, M.; Ambrosio, A.; Concheyro, A. (2005). "Nautilids from the Upper Cretaceous of the James Ross Basin, Antarctic Peninsula". Antarctic Science. 17 (2): 267. Bibcode:2005AntSc..17..267C. doi:10.1017/S0954102005002671.