1. Agricola, G. 1546.De ortu et causis subterraneorum lib. V. Deatura eorum quae effluunt exterra lib. III. De natura fossilium lib. X. De veteribus et novis metallis lib. II. Bermannus sive de re metallica dialogus. Interpretatio germanica vocum rei metallicae, addito indice foecundissimo, 487Basel: Forben Press.
2. Bather, F. A. 1909.Triassic echinoderms of Bakony. Palaontologie der Umgeb. Balatonsees, Wiss. Erforsch, Balatonssees, Resulate. Anh 268Budapest: Palaontologie.
3. The Triassic Crinoids from New Zealand, collected by Dr. C. T. Trechmann