The Echinoid Directory

Rojasia Sanchez Roig, 1951, p. 58

Diagnostic Features
  • Test cordate with strong anterior sulcus. In profile peaked towards apex and depressed posteriorly.
  • Apical disc structure uncertain. Positioned 36% test length from anterior.
  • Anterior ambulacrum narrow and sunken; pore-pairs small, simple isopores.
  • Other ambulacra forming long, narrow, sunken petals, the anterior pair widely divergent.
  • Periproct, peristome and oral surface unknown.
  • Well-developed peripetalous faciole; indented in paired interambulacra.
Eocene, Cuba.
Name gender feminine
Rojasia rojasi Sanchez Roig, 1951, p. 58, by original designation.
Species Included
Only the type species.
Classification and/or Status

Spatangoida, Micrasterina, Brissidae.

Subjective junior synonym of Schizobrissus Pomel, 1869


Only a single specimen of this taxon exists and nothing is known of its oral surface. It has recently been redescribed by Kier (1984).

Kier, P.M. 1984. Fossil spatangoid echinoids of Cuba. Smithsonian Contributions to Paleobiology 55, 1-336.