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Planolites annularius
Taxonomy
Planolites annularius was named by Walcott (1890). Its type specimen is USNM 18360 and is a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1890 | Planolites annularius Walcott |
| 1975 | Planolites annularius Alpert p. 517 figs. Plate 2, fig. 10; Plate 3, fig. 5 |
| 1982 | Planolites annularis Pemberton and Frey p. 896 figs. P1. 1, fig. 11 |
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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.
†Planolites annularius Walcott 1890
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. G. Pemberton and R. W. Frey 1982 | Distinctly annulated, subcylindrical burrows. |