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Physemataspis tholus
Taxonomy
Encrinuroides tholus was named by Evitt and Tripp (1977). Its type specimen is USNM 217520, a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Frencrinuroides tholus by Edgecombe et al. (1998); it was recombined as Physemataspis tholus by Moss and Westrop (2014).
It was recombined as Frencrinuroides tholus by Edgecombe et al. (1998); it was recombined as Physemataspis tholus by Moss and Westrop (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Encrinuroides tholus Evitt and Tripp p. 166 figs. pl. 4 f. 6 |
| 1998 | Frencrinuroides tholus Edgecombe et al. pp. Table 1 |
| 2014 | Physemataspis tholus Moss and Westrop pp. 1113, table 1 |
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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.
†Physemataspis tholus Evitt and Tripp 1977
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Diagnosis
No diagnoses are available