J. Rousseau, A. S. Gale, and B. Thuy, “New articulated asteroids (Echinodermata, Asteroidea) and ophiuroids (Echinodermata, Ophiuroidea) from the Late Jurassic (Volgian / Tithonian) of central Spitsbergen”, EJT, no. 411, Mar. 2018.