Rhynchonellata - Spiriferida - Spiriferellidae

Alternative combination: Cyrtina australasica

Full reference: R. Etheridge Jr. 1889. Remarks on fossils of Permo-Carboniferous age, from north-western Australia, in the Macleay Museum. Proceedings of the Linnean Society of New South Wales, Series 2 4:199-214

Belongs to Spiriferella according to N. W. Archbold and G. A. Thomas 1985

Sister taxa: Spiriferella antefurcata, Spiriferella arctica, Spiriferella bituchensis, Spiriferella borealica, Spiriferella burgaliensis, Spiriferella calcarata, Spiriferella clypeata, Spiriferella consimilis, Spiriferella cundlegoensis, Spiriferella embrithes, Spiriferella etheridgei, Spiriferella gloverae, Spiriferella gravis, Spiriferella hinganensis, Spiriferella interplicata, Spiriferella jilongensis, Spiriferella keilhavii, Spiriferella keilhaviiformis, Spiriferella lata, Spiriferella leviplica, Spiriferella levis, Spiriferella loveni, Spiriferella magna, Spiriferella modesta, Spiriferella mugunica, Spiriferella nepalensis, Spiriferella orientensis, Spiriferella ovata, Spiriferella persaranae, Spiriferella personata, Spiriferella primaeva, Spiriferella propria, Spiriferella pseudodraschei, Spiriferella pseudotibetana, Spiriferella rajah, Spiriferella salteri, Spiriferella saranae, Spiriferella scobina, Spiriferella scobinoidea, Spiriferella scopulosus, Spiriferella simplex, Spiriferella sinica, Spiriferella subsalteri, Spiriferella sulcifer, Spiriferella supplanta, Spiriferella tetralobata, Spiriferella turusica, Spiriferella unicostata, Spiriferella vaskovskii, Spiriferella vojnowskii, Spiriferella wangi, Spiriferella wimanni, Spiriferella yukonensis

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 20.3 x 22.2, valve 35.2 x 28.3