Holothuroidea - Dendrochirotida - Calclamnidae

Alternative combination: Praecaudina subhexagona

Full reference: R. C. Gutschick, W. F. Canis, and K. G. Brill, Jr. 1967. Kinderhook (Mississippian) holothurian sclerites from Montana and Missouri. Journal of Paleontology 41(6):1461-1480

Belongs to Eocaudina according to A. Boczarowski 2001

Sister taxa: Eocaudina acanthica, Eocaudina angulata, Eocaudina bombayensis, Eocaudina cassianensis, Eocaudina circularia, Eocaudina columcanthus, Eocaudina concentrica, Eocaudina crassa, Eocaudina gornensis, Eocaudina gowdai, Eocaudina gutschicki, Eocaudina hexagona, Eocaudina hexagona, Eocaudina indica, Eocaudina insolica, Eocaudina jaffari, Eocaudina liassica, Eocaudina liptovskaensis, Eocaudina longa, Eocaudina marginata, Eocaudina mccormacki, Eocaudina mostleri, Eocaudina ovalis, Eocaudina patella, Eocaudina pentagona, Eocaudina plaga, Eocaudina ramosa, Eocaudina rimosa, Eocaudina septaforaminalis, Eocaudina subquadrata

Type specimen: Holotype, UND 102; paratypes, UND 112-116; UMO E-45-18

Ecology: stationary epifaunal suspension feeder-detritivore