[1] As members of the order Isocrinida, E. parrae possess a heteromorphic stalk that is made of calcareous nodal columns.

[6] E. parrae has been shown to grown at a more rapid rate in shallower depths due to temperature, but also exhibit less growth in areas without a strong flow of water.

[8] As filter feeders, Endoxocrinus parrae use their large branching arms to collect food from the water column.

About 60% of the gut content of E. parrae has been found to be detritus, suggesting that they mostly feed on marine snow and other particulate matter in the water column.

[2] The stomachs of C. mican collected around E. parrae contained large amounts of crinoid stems and soft tissue.