The Echinoid Directory
Contributed by Andrew Smith, September 2006
Order Triadotiaroida Hagdorn, 1995, p. 249
| Species Included | Monotypic |
|---|---|
| Classification and/or Status | Equal to Family Triadotiaridae Hagdorn in content. Treated as a stem group plesion of the Cidaroida. |
| Remarks | Hagdorn, H. 1995. Die Seeigel des germainischen oberen Muschelkalks. Geologisches und Palaontologisches Mittelilungen, Innsbruck 20, 245-281. |