The Echinoid Directory

Contributed by Andrew Smith, September 2011

Titanaster Szorenyi, in Mortensen, 1950, p. 84

Diagnostic Features	Ovate with faint anterior sulcus Apical disc subcentral; holasterid in structure All five ambulacra subpetaloid aborally, petals extending towards the ambitus Oral surface unknown Aboral tubercles fine and sparse.
Distribution	Eocene of Hungary
Name gender	masculine
Type	Titanaster labiostoma Szorenyi, 1929, by original definition.
Species Included	Only the type species.
Classification and/or Status	Irregularia, Atelostomata, Holasteroida Unknown
Remarks	The original description of this genus is in the dissertation of E. Szorenyi, which does not count as a valid publication. Mortensen (1950, p. 84) in publishing the name and illustration validated the genus. Without knowledge of the oral plating it is impossible to place this genus beyond Holasteroida. Mortensen, T. 1950. A monograph of the Echinoidea. V.1. Spatangoida 1. C. A. Reitzel, Copenhagen.