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Taxonomy
Asaphus quadraticaudatus was named by Billings (1865) [Lectotype selected by Whittington 1965]. Its type specimen is GSC 654 (lectotype), a pygidium, and it is a mold.
It was recombined as Niobe quadraticaudata by Raymond (1925).
It was recombined as Niobe quadraticaudata by Raymond (1925).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Asaphus quadraticaudatus Billings p. 272 fig. 258 |
| 1925 | Niobe quadraticaudata Raymond p. 76 figs. Plate 3, fig. 20; Plate 6, fig. 13 |
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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.
†Niobe quadraticaudata Billings 1865
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Diagnosis
No diagnoses are available