Differs from Cibaster in having three gonopores and an orthosternous plastron. It may be synonymous with the poorly known Ganbirettia, from the same region and horizon. The test is worn smooth so that tuberculation patterns are almost entirely indeterminate. However, there appear to be slight traces of a subanal fasciole. Very similar to Basseaster but with three gonopores not four and with convex anterior.
Lambert, J. 1907. Note sur quelques echindes de la Haute-Garonne. Bulletin de la Societe geologique de France Series 4 6, 695-723, 3 pls (for 1906).
Smith A. B. & Jeffery, C. H. 2000. Maastrichtian and Palaeocene echinoids: a key to world faunas. Special Papers in Palaeontology 63, 1-404.