Entity:

Concise hierarchy

Current position

Pantetrapulmonata ([unranked]) Shultz, 2007

Ref: J.W. Shultz, 2007: fig. 1.

*Megoperculata* ([unranked]) Börner, 1902	Ref: J.A. Coddington et al., 2004: fig. 18.1.
*Pulmonata* ([unranked])	Ref: J.C. Regier et al., 2010: fig. 1.

*Pulmonata* ([unranked])	Ref: J.C. Regier et al., 2010: fig. 1.
*Megoperculata* ([unranked]) Börner, 1902	Ref: J.A. Coddington et al., 2004: fig. 18.1.

2025	Available in Systema Naturae 2000	4o;144f;4495g;21,107s;669ss;1v; †2o;55f;503g;90s
1989-present	Systema Naturae 2000: 7 Feb 2025	[4o;144f;4495g; †2o;55f;503g]