The Echinoid Directory

Platysalenia Smith & Wright, 1990, p. 167

Diagnostic Features
  • Apical disc flat and unornamented with large, square-ended ocular plates that project strongly. Large pits at mid-length along genital-genital and genital-ocular plate sutures.
  • Ambulacra straight and with exceptionally broad and somewhat concave perradial zone of fine granules (forming >80% of ambulacral width).
  • Ambulacral plating bigeminate throughout.
  • Primary tubercles on interambulacral plates without scrobicular tubercles on adambulacral side.
  • Tubercles imperforate and crenulate.
Cretaceous,  (Late Albian), England.
Name gender feminine
Salenia dux Wright, 1967, by original designation.
Species Included
  • Only the type species.
Classification and/or Status

Salenioida; Saleniidae; Saleniinae

Monotypic: subgenus of Salenidia Pomel, 1883


Close to Salenidia in apical disc structure, but with wide and finely granular perradial zones.

Smith, A. B. & Wright, C. W. 1990. British Cretaceous Echinoids. Part 2, Echinothurioida, Diadematoida and Stirodonta (1, Calycina). Monograph of the Palaeontographical Society 101-198, pls 33-72 (publication number 583, part of volume 143 for 1989).