Late Triassic (Rhaetian) ophiuroids from Winterswijk, the Netherlands; with comments on the systematic position of Aplocoma (Echinodermata, Ophiolepididae)*
Ophiuroid (Echinodermata) systematics—where do we come from, where do we stand and where should we go?*
Observations on Onychaster Meek & Worthen, 1868 (Ophiuroidea: Onychasteridae) (Famennian – Visean age)*