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Maydena
Taxonomy
Maydena was named by Jell (2014). Its type is Maydena roadsidensis.
It was assigned to Ophiuroidea by Jell (2014); and to Stenuroidea by Blake and Guensburg (2015).
It was assigned to Ophiuroidea by Jell (2014); and to Stenuroidea by Blake and Guensburg (2015).
Species
M. roadsidensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Maydena Jell pp. 531 - 532 |
| 2015 | Maydena Blake and Guensburg p. 479 |
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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 | |
|---|---|---|
| P. A. Jell 2014 | Stellate body, with small central area and moderately elongate arms (none completely preserved); arms with three columns of plates each side of per radial line; ambulacrals in two contiguous columns forming the floor of the perradial channel, with most of large podial basin on abradial half of each ambulacral and proximal and distal flanges on each plate about same size; ambulacral plates essentially flat, with each bearing a T-shaped ridge on the oral surface, with large flat flange lining perradial channel and overlapping the flange of the next proximal ambulacral. |