The Echinoid Directory

• Apical disc relatively flat, raised above the corona. Plates smooth and unornamented with small sutural pits.
• Periproct very small and offset to posterior right from anterior-posterior axis; much smaller than suranal plate.
• Gonopore opening subcentral on genital plate and clearly visible in aboral view.
• Ambulacral plating bigeminate; granulation developed between the two columns of primary tubercles.
• Ambulacra bigeminate at ambitus and adapically; expanded on oral surface to form phyllodes.
• Primary mamelons relatively large and increasing in size adapically.

Late Cretaceous (Campanian); Sweden.

Salenia loveni Cotteau, 1888, by original designation.

• Only the type species.

Salenioida; Saleniidae; Saleniinae.

Subjective junior synonym of Salenia Gray, 1835.

Differs from the type species of Salenia only in having expanded pore zones adorally, coarser mamelons and a slightly flatter apical disc.

Lambert, J. 1895. 1895. Essai d'une monographie du genere Micraster et notes sur quelques échinides. Pp. 149-267. In de GROSSOUVRE, A. (ed.) Recherches sur la Craie supérieure. Mémoires du Service de la Carte géologique de France 1 (Chapitre IV).

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).

Mortensen, T. (1935). A Monograph of the Echinoidea. II, Bothriocidaroida to Stirodonta. C. A. Reitzel, Copenhagen