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Tropidasteridae
Taxonomy
Tropidasteridae was named by Wright (1880). It is not extant. Its type is Tropidaster.
It was assigned to Eugnathina by Spencer and Wright (1966); and to Velatida by Blake (1987), Blake (1989).
It was assigned to Eugnathina by Spencer and Wright (1966); and to Velatida by Blake (1987), Blake (1989).
Subtaxa
Plumaster, Tropidaster (type genus)
Entered
by L. Villier on 2006-05-22; modified by L. Villier on 2013-10-27
Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Tropidasteridae Wright |
| 1966 | Tropidasteridae Spencer and Wright p. U67 |
| 1987 | Tropidasteridae Blake |
| 1989 | Tropidasteridae Blake p. 213 |
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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.
Fm. †Tropidasteridae Wright 1880
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Diagnosis
No diagnoses are available