The Echinoid Directory

Family Toxopneustidae Troschel, 1872, p. 38

Diagnosis	Regular echinoids with: ambulacral plates compound in the echinoid style (lowest element dominant); peristome margin with sharp and prominent buccal notches; tubercles imperforate and non-crenulate; lantern camarodont, with keeled teeth and epiphyses united above foramen magnum;
Range	Eocene to Recent; worldwide