Reference

Julie Rousseau, Andrew Scott Gale, Ben Thuy (2018): New articulated asteroids (Echinodermata, Asteroidea) and ophiuroids (Echino dermata, Ophiuroidea) from the Late Jurassic (Volgian / Tithonian) of central Spitsbergen – European Journal of Taxonomy – 0411: 1 - 26.