The Echinoid Directory

Zumoffenia Fourtau, 1912, p. 50

Diagnostic Features
  • Test ovate with flat base, domed upper surface, lower surface rather flat.
  • Apical disc subcentral with four gonopores. Hydropores extend over anterior genital plates and ocular plates II and IV.
  • All ambulacra subpetaloid adapically.
  • Posterior column of pore-pairs in petal distinctly broader than anterior column.
  • Plastron plating meridosternous according to description.
  • Peristome ovate; facing downwards; slightly depressed but without anterior sulcus.
  • Periproct on short trucate posterior face.
  • Aboral tuberculation uniform and fine.
  • Marginal fasciole present at least in small individuals.
Distribution
Upper Cretaceous (Cenomanian), Syria.
Name gender feminine
Type
Zumoffenia ludovici Fourtau, 1912, p. 51, by original designation.
Species Included
  • Only the type species.
Classification and/or Status

Holasteroida, Meridosternata, Echinocorythidae.

Monotypic. Subjective junior synonym of Pseudananchys

Remarks

Differs from Pseudananchys only in being rather flattened. According to Peron & Gauthier, however, there is quite some range in the elevation of the aboral surface in the type species P. algiris. Consequently, Zumoffenia is here treated as a junior synonym of Pseudananchys.

Fourtau, R. 1912. Contribution a l'etude des echinides fossiles de la Syrie. Memoires de l'Institut Egyptien 7(2), 41-68, pls 12-14 [for 1911]