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The Echinoid Directory

Cardiotaxis Lambert, 1917, p. 212(22)

[= Cardiataxis Lambert, 1917, p. 215(25) (pro errore)]

Diagnostic Features
  • Test ovate with flat base, domal upper surface and weak anterior sulcus.
  • Apical disc subcentral with four gonopores.
  • All ambulacra with simple, rounded pore-pairs adapically.
  • Plastron plating uniserial with 2 to 4 post-labral plates arranged uniserially.
  • Peristome small and circular; facing downwards.
  • Periproct on short trucate posterior face.
  • Aboral tuberculation uniform and fine.
  • Marginal fasciole present around posterior.
Distribution
Upper Cretaceous (Turonian to Maastrichtian), Europe.
Name gender feminine
Type
Cardiaster peroni Lambert, in Peron, 1887, p. 412 [=Spatangus planus Mantell, 1822, p. 192], by original designation.
Species Included
Classification and/or Status

Holasteroida, Cardiasteridae.

Objective junior synonym of Sternotaxis Lambert, 1893
Remarks

Lambert, J. 1887. Echinides. Description de quelques especes de la Craie de l'Yonne. Bulletin de la Societe des Sciences historiques et naturelles de l'Yonne 12 , 41, p. 412, pl. 8, figs 15-18.

Smith, A. B. & Wright, C. W. 2003. British Cretaceous echinoids. Part 7, Atelostomata, 1. Holasteroida. Palaeontographical Society Monographs, London. Pp. 440-568, pls 139-182.