The Echinoid Directory

Contributed by Andrew Smith, August 2011

Gajechinus Lambert & Thiery, 1914, p. 242

Diagnostic Features	Test crushed; upper suface only preserved Apical disc unknown Ambulacra slightly more than half interambulacral width; plating trigeminate with echinoid plate compounding. Pore-pairs in arcs Interambulacral plates with single primary tubercle, non-contiguous in vertical series. Secondary tubercles present Primary tubercles imperforate and non-crenulate
Distribution	Miocene, Pakistan
Name gender	masculine
Type	Echinus subcrenatus Duncan & Sladen, 1885, p. 317, by original designation
Species Included	Only the type species.
Classification and/or Status	Camarodonta, Echinoida, incertae sedis
Remarks	Too poorly known to be placed with any confidence. The plate compounding and non-crenulate tubercles suggest membership of the Echinoida. Duncan, P. M., & Sladen, P. W. 1885. The fossil Echinoidea from the Gaj or Miocene Series. Memoirs of the Geological Survey of India, Palaeontologia Indica. Tertiary and Upper Cretaceous fossils of western Sind 14, Volume 1 (3). The Fossil Echinoidea. Fasciculus V, 273-367, pls 44-55. Lambert, J. & Thiery, P. 1914, in 1909-1925 Essai de nomenclature raisonee des echinides. Chaumont.