Hess, H. (2006). Crinoids (Echinodermata) from the Lower Jurassic (Upper Pliensbachian) of Arzo, southern Switzerland. Schweizerische Palaeontologische Abhandlungen, 126, 1-141
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Hess, H.
2006
Crinoids (Echinodermata) from the Lower Jurassic (Upper Pliensbachian) of Arzo, southern Switzerland.