Diplocrininae Roux, 1981

Roux, Michel & Philippe, Michel, 2021, Early Miocene stalked crinoids (Echinodermata) from the southern Rhodanian basin (southeastern France). Paleoenvironments and taxonomy, Zootaxa 5052 (3), pp. 301-331 : 314

Subfamily Diplocrininae Roux, 1981

Remarks. Teliocrinus ojii ( Roux et al., 2009) is the only known undisputed fossil Diplocrininae with its crown preserved found at base of the Middle Miocene in Japan ( Oji 1990). The Diplocrininae are mainly distinguished by the substantial reduction in number of brachials per brachitaxis and distal stalk symplexies with petaloid zones that remain open ( David et al. 2006). This last character being paedomorphic, the attribution to the genus Endoxocrinus based only on columnals and pluricolumnals remains in open taxonomy because it is only a parsimonious hypothesis, which remains to be confirmed by the discovery of brachials or proximal arm fragments.