Contributed by Andrew Smith, August 2011
Diagnostic Features | Like Micropeltis with polygeminate ambulacral plating but with pore zones simple at ambitus and adorally, becoming bigeminate only close to the apex. In Plesiopeltis the development of the ambulacra is the inverse of that in Micropeltis [from Lambert 1897, p. 517]. Tubercles smooth and imperforate. |
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Distribution | Eocene, Spain |
Type | Circopeltis gourdoni Cotteau, 1889, p. 55, by original designation. |
Species Included | Only the type species. |
Classification and/or Status | Euechinoidea, Echinacea, Stomopneustoida, Stomopneustidae? Monotypic |
Remarks | Poorly known. Placed in the Stomopneustidae only tentatively as ambulacral plate compounding style is unknown. Lambert, J. 1897. Note sur quelques echinides eocenes de l'Aube. Bulletin de la Societe geologique de France Serie 3, 25(1), 483-517. Cotteau, G. 1889. Echinides recueillis dans lka Province d'Aragon. Annales des Sciences naturelles. Zoologie et Paleontologie 8, 1-60, pls 1-4. |