The alternative name Cyacadeoideales is preferred in the system of Novikoff & Barabasz-Krasny, 2015 and is followed ... [details]
Bennettites, although a junior synonym of Cycadeoidea, has historically been used as the basis for names of higher ... [details]
Cycadeoidea W. Buckland, Trans. Geol. Soc. (London) ser.2. 2: 397. 1829 lacked a generic description. (Index ... [details]
Alternative name: Bennettitaceae; Cyacadeoideaceae is preferred in IRMNG following Novikoff & Barabasz-Krasny, 2015, ... [details]
Name based on the genus Cycadeoidea Buckland ex Lindley & Hutton, 1832 (nom. cons. prop., refer Doweld, 2016), ... [details]
Authorship previously given in Index Nominum Genericorum as A.T. Brongniart ex Bronn, 1837, now (2018) as A.T. ... [details]