WoRMS note details

Etymology
English
eng
Incorporates the prefix tri- with the root –patagus to indicate the 3 gonopores.
Zachos, L.G. 2012. A new genus and species of echinoid (Echinoidea, Spatangoida) from the Oligocene (Rupelian) of Mississippi. Southeastern Geology, 49/1, 43-48.
Echinoidea