Carbopermian Crinoids.—
The Carbopermian (Upper Marine Series) of New South Wales yields the interesting Crinoid having a large, globular cup, known as Phialocrinus; the best known species of this genus are P. konincki ([Fig. 76 E]) and P. princeps. Beds of the same age in New South Wales, also in the Upper Marine Series, contain the aberrant Crinoid with strongly sculptured plates of the calyx in the decorticated condition, Tribrachiocrinus clarkei.
Poteriocrinus and Platycrinus are, with some reservation, recorded from the Gympie Series at Stanwell and the marine beds of the Bowen River Coal-field respectively, both in Queensland.
In Western Australia the Carbopermian rocks of the Gascoyne River are known to contain crinoid stems, tentatively referred to either the Rhodocrinidae or the Actinocrinidae. There is also a species of Platycrinus known from the Gascoyne and Irwin Rivers, and from the Kimberley District.
Triassic Crinoids.—
The Kaihiku Series of Nelson, New Zealand, has yielded some crinoid stems, but the genus has not yet been determined.
Cretaceous Crinoids.—
In the Lower Cretaceous Limestone of Queensland, at Mitchell Downs and Wollumbilla, a typical Crinoid, closely allied to the living Pentacrinus is found, namely, Isocrinus australis ([Fig. 76 F]).
The Upper Cretaceous opal deposits of White Cliffs in Wilcannia, New South Wales, contain many opalised fossil remains, amongst them being Isocrinus australis, already noticed as occurring in the Lower Cretaceous of Queensland.