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Xiphostylus fragilis
Taxonomy
Xiphostylus fragilis was named by Pessagno et al. (1989). Its type specimen is USNM 424170 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1989 | Xiphostylus fragilis Pessagno et al. p. 234 figs. Pl. 3,figs. 3, 4, 12, 23 |
1989 | Xiphostylus fragilis Pessagno and Yang |
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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.
†Xiphostylus fragilis Pessagno et al. 1989
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Diagnosis
No diagnoses are available