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Xenosteges quadratus
Taxonomy
Xenosteges quadratus was named by Cooper and Grant (1975). Its type specimen is USNM 154246a, a shell (Articulated shell), and it is not a trace fossil.
Synonymy list
Year | Name and author |
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1975 | Xenosteges quadratus Cooper and Grant pp. 859-860 figs. Pl 235, figs 1-60; pl 236, figs 1-18 |
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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.
†Xenosteges quadratus Cooper and Grant 1975
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Diagnosis
No diagnoses are available