Mode of life and hydrostatic stability of orthoconic ectocochleate cephalopods: Hydrodynamic analyses of restoring moments from 3D printed, neutrally buoyant models. - PETERMAN, DAVID J.; CIAMPAGLIO, CHARLES N.; SHELL, RYAN C.; YACOBUCCI, MARGARET M. (Acta Palaeontologica Polonica, 2019)