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Tripatagus Zachos, 2012, p. 45

Diagnostic Features	Apical system ethmolytic with 3 gonopores; no gonopore in genital plate 2. Anterior ambulacrum non-petaloid, sunken, pores uniserial. Petaloid ambulacra sunken, pores not conjugate. Amphisternous plastron; elongate labrum. Adoral interambulacra amphiplacous. Peripetalous fasciole and bilobed subanal fasciole present
Distribution	Lower Oligocene (Rupelian), Marianna Limestone and Glendon Limestone (Vicksburg Group), Rankin, Smith, and Warren Counties, Mississippi, USA
Name gender	masculine
Type	Tripatagus pittsi Zachos, 2012, p. 45, by original designation. Holotype: Mississippi Museum of Natural Science (MMNS) IP-4006, paratypes MMNS IP-3929, IP-103.1, IP-103.2, IP-103.3
Species Included	Only the type species.
Classification and/or Status	Spatangoida, Micrasterina, Maretiidae? Monotypic
Remarks	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.