Willink 1979. The crinoid genera Tribrachyocrinus McCoy, Calceolispongia Etheridge, Jimbacrinus Teichert and Meganotocrinus n. gen. in the Permian of eastern Australia. Palaeontographica Abteilung A Palaeozoologie-Stratigraphie, 165(3-6) 1979: 137-194