Grebneff, A.; Janssen, A. W.; Lee, D. E. (2011). A new euthecosomatous gastropod Gamopleura maxwelli sp. n.(Gastropoda: Cavolinioidea, Cavoliniidae) from the Late Oligocene of southern New Zealand. New Zealand Journal of Geology and Geophysics. 54(1), 69-74.
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Grebneff, A.; Janssen, A. W.; Lee, D. E.
2011
A new euthecosomatous gastropod Gamopleura maxwelli sp. n.(Gastropoda: Cavolinioidea, Cavoliniidae) from the Late Oligocene of southern New Zealand