Beu, A. G.; Maxwell, P. A. (1987). A revision of the fossil and living gastropods related to Plesiotriton Fischer, 1884 (Family Cancellariidae, Subfamily Plesiotritoninae n. subfam.). With an appendix: Genera of Buccinidae Pisaniinae related to Colubraria Schumacher, 1817. New Zealand Geological Survey Paleontological Bulletin. 54: 1-140.
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Beu, A. G.; Maxwell, P. A.
1987
A revision of the fossil and living gastropods related to <i>Plesiotriton</i> Fischer, 1884 (Family Cancellariidae, Subfamily Plesiotritoninae n. subfam.). With an appendix: Genera of Buccinidae Pisaniinae related to <i>Colubraria</i> Schumacher, 1817
New Zealand Geological Survey Paleontological Bulletin