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Xystocrania perforator
Taxonomy
Cheirurus perforator was named by Billings (1865). Its type specimen is GSC 684, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Nieszkowskia perforator by Raymond (1925); it was recombined as Xystocrania perforator by Whittington (1965) and Ross (1970).
It was recombined as Nieszkowskia perforator by Raymond (1925); it was recombined as Xystocrania perforator by Whittington (1965) and Ross (1970).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Cheirurus perforator Billings p. 287 fig. 275 |
| 1925 | Nieszkowskia perforator Raymond p. 146 |
| 1953 | Kawina unicornica Hintze p. 179 figs. Pl. 28, figs. 2a-c |
| 1965 | Xystocrania unicornica Whittington p. 412 |
| 1965 | Xystocrania perforator Whittington p. 413 |
| 1970 | Xystocrania perforator Ross p. 89 figs. Plate 17, figures 3-7, 10 |
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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.
†Xystocrania perforator Billings 1865
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Invalid names: Kawina unicornica Hintze 1953 [synonym]
Diagnosis
No diagnoses are available