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Lepyriactinidae (disused)
Taxonomy
Lepyriactinidae was named by Spencer and Wright (1966). It is not extant. Its type is Lepyriactis.
It was assigned to Eugnathina by Spencer and Wright (1966); and to Hemizonida by Blake (1989).
It was assigned to Eugnathina by Spencer and Wright (1966); and to Hemizonida by Blake (1989).
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Lepyriactinidae Spencer and Wright p. U65 |
| 1989 | Lepyriactinidae 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. †Lepyriactinidae Spencer and Wright 1966
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer and C. W. Wright 1966 | Aboral skeleton reduced, not preserved in fossils; adambulacrals very narrow, mouth angle plates much elongated |