The Echinoid Directory

Tornquistellus Berg, 1899, p. 77

[=Leptechinus Tornquist, 1897, p. 785, non Leptechinus Gauthier, 1869]

Diagnostic Features	Test unknown; taxon based on isolated interambulacral plates. Interambulacral plates thin, imbricate, polygonal; with small and scattered secondary tubercles only.
Distribution	Lower Carboniferous, Germany.
Name gender	masculine
Type	Leptechinus gracilis Tornquist, 1897, p. 785, by original designation.
Species Included	Only the type species.
Classification and/or Status	Stem group Echinoidea; Indeterminate. Monotypic; nomen dubium.
Remarks	Plates like these can be found in a number of different Palaeozoic echinoid groups. The taxon is completely indeterminate. Tornquist, A. 1897. Das fossil fuhrende Untercarbon am ostlichen Rossberg Massiv in den Sudvogesen. III. Beschreibung der Echiniden Fauna. Abhandlungen der Geologische Karte Els.-Loth. Jackson, R. T. 1912. Phylogeny of the Echini, with a revision of Palaeozoic species Memoirs of the Boston Society of Natural History 7, 491 pp. 76 pls.