Molds and casts of edrioasteroids have been recovered from thick clastic (probably turbidite) Ludlovian to Siegenian sequences of central Victoria, Australia. Three Northern Hemisphere genera are apparently represented by Rhenopyrgus whitei n. sp., Pyrgocystis? petalus n. sp. and Isorophus pannosus n. sp. Epipaston ixine n. gen., n. sp. is unique among known edrioasteroids because of its long stout spines on proximal rim plates. A fifth species is represented by a single specimen that cannot be assigned generically.--Journal abstract.

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