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Beothukis was named by Brasier and Antcliffe (2009). Its type is Beothukis mistakensis.

It was assigned to Rangeomorpha by Erwin et al. (2011) and Brasier et al. (2012).

Synonymy list
YearName and author
2009Beothukis Brasier and Antcliffe pp. 382-383 figs. 17-18
2011Beothukis Erwin et al.
2012Beothukis Brasier et al. p. 1114

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genusBeothukisBrasier and Antcliffe 2009

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

M. D. Brasier et al. 2012Frond unipolar, comprising two rows of primary branches arranged in irregularly spaced alternations along a furled central axis, forming a linear suture (Figs 5C–D and 8B). Inflation of first- and second-order branches is moderate to medial. Mature first- and second-order branches typi- cally have furled margins, with alignments that are arranged in radiating to subparallel series. Rangeomorph ele- ments of the first-order branches are usually undisplayed, whereas those of second-order branches are clearly dis- played. A basal disc and stem is sometimes preserved.