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Lepidactis
Taxonomy
Lepidactis was named by Spencer (1918) [Sepkoski's age data: S Wenl]. Its type is Lepidactis wenlocki. It is the type genus of Lepidactinidae.
It was assigned to Lepidactinidae by Spencer (1918); to Lepidactininae by Spencer and Wright (1966); to Pustulosida by Sepkoski (2002); and to Lepidasteridae by Owen (1965), Herringshaw et al. (2007), Blake et al. (2016) and Blake (2018).
It was assigned to Lepidactinidae by Spencer (1918); to Lepidactininae by Spencer and Wright (1966); to Pustulosida by Sepkoski (2002); and to Lepidasteridae by Owen (1965), Herringshaw et al. (2007), Blake et al. (2016) and Blake (2018).
Species
L. wenlocki (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1918 | Lepidactis Spencer p. 113 |
| 1965 | Lepidactis Owen p. 564 |
| 1966 | Lepidactis Spencer and Wright p. U51 |
| 2002 | Lepidactis Sepkoski |
| 2007 | Lepidactis Herringshaw et al. p. 1223 |
| 2016 | Lepidactis Blake et al. p. 169 |
| 2018 | Lepidactis Blake p. 33 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. G. Herringshaw et al. 2007 | Five-rayed lepidasterids with small central disc. Madreporite of curved oblong shape with anastomosing ornament. Proximal inferomarginals bulbous; interradius with large rhomboid axillary almost enclosed by square inferomarginals. Aboral surface of rays with hexagonal primary carinals and slightly larger, square to hexagonal superomarginals, separated proximally by small minor carinals. |