| Current unranked name | : | †Rhizodontida ([unranked]) Andrews & Westoll, 1970 | |
Ref: R. Cloutier & P.E. Ahlberg, 1996: 468; 1 Apr 2025. [inferred] |
| Current unranked name | : | †Rhizodontimorpha ([unranked]) | |
Ref: J.S. Nelson, 2006: 465. [implicit] |
| Former rank | : | †Rhizodontida (Order) Andrews & Westoll, 1970 | |
Ref: J.S. Nelson et al., 2016: 110; 1 Apr 2025. [inferred] |
| Former rank | : | †Rhizodontida (Order) Andrews & Westoll, 1970 | |
Ref: R. van der Laan, 2018: 90; 25 Feb 2025. [inferred] |
| Former unranked name | : | †Rhizodontida ([unranked]) Andrews & Westoll, 1970 | |
Ref: J.S. Nelson et al., 2016: 110; 1 Apr 2025. [inferred] |
| Former unranked name | : | †Rhizodontida ([unranked]) Andrews & Westoll, 1970 | |
Ref: R. van der Laan, 2018: 90; 25 Feb 2025. [inferred] |
| Former unranked name | : | †Rhizodontimorpha ([unranked]) | |
Ref: J.S. Nelson et al., 2016: 110. |