|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|O. Fatka and V. Kordule 1990||Eocrinoids with irregular multiplated cylindrical to conical theca; aboral portion of theca ( = calyx and holdfast) composed of adorally imbricate plates without epispires; oral surface composed of adjacent plates bearing large epispires. Ambulacral system confined to oral surface, composed of unbranched biserial brachioles, probably five in number.|
|M. Nohejlová et al. 2019||Body wall composed of two
parts – aboral cup and oral surface. Cone-shaped aboral
cup composed of adorally overlapping imbricate plates,
without epispires. Flattened tessellate oral surface made
of numerous adjacent polygonal plates, bearing epispires.
Curved ambulacra showing a 2-1-2 pattern, extended over oral surface toward lateral edge. Coiled brachioles mounted unilaterally to ambulacral ray. Mouth close to centre of oral surface.