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The Echinoid Directory

Family Anorthopygidae Wagner & Durham, 1966, p. U444.

Diagnosis Pygasterina with
  • Apical disc compact with four genital plates; genital plate 2 extending popsteriorly to separate the posterior genital and ocular plates.
  • Periproct oblique and separated from the apical disc by interambulacral plates; opening above the ambitus
Range Cretaceous (Albian to Maastrichtian) of Europe, the Middle East and Cuba.
Remarks Easily distinguished from Pygasteridae on the basis of its periproct shape and position.

Wagner, C. D. & Durham, J. W. 1966. Holectypoids. Pp. U440-450 in Treatise on Invertebrate Paleontology. Part U Echinodermata 3. Geological Society of America and Unievrsity of Kansas Press.