In New South Wales Pisocrinus is represented with some reservation by (?) P. yassensis, found at Limestone Creek, near Yass ([Fig. 76 A, B]).
In Victoria, Helicocrinus plumosus and Botryocrinus longibrachiatus occur at Brunswick and Flemington, respectively ([Fig. 76]). The former is a delicate and handsome species, having a small cup with finely pinnate arms, which are forked once, and with a pentagonal stem coiled at the distal end (see Frontispiece). The genus Botryocrinus is found in rocks of a similar age in North America and England. Hapalocrinus victoriae, a member of the Platycrinidae, has been described from the mudstone of South Yarra, near Melbourne. The species above mentioned are of Melbournian age, belonging to the lower stage of the Silurian system.
Devonian Crinoids.—
In the Middle Devonian of Queensland, fragmentary crinoid stems are found interbedded with the limestone of the Broken River.
Thin slices of the limestone of the same age from Buchan, Victoria, show numerous ossicles and stem-joints of Crinoids.
Similar remains have also been recorded from the Devonian of the Kimberley district and the Gascoyne River in Western Australia.
Carboniferous Crinoids.—
The Carboniferous (Star Beds) of Queensland has yielded remains of Actinocrinus.
The Matai Series of New Zealand, which may be regarded as almost certainly of Carboniferous age, contains remains of a Cyathocrinus, found in the limestone of the Wairoa Gorge.