A new athyridacean brachiopod from the Carboniferous of Rawdon Vale, New South Wales

Rawdonia nasharae gen. et sp. nov. is described from the Carboniferous Carsonville and Berrico Creek Formations at Rawdon Vale, N. S. W. Rawdonia is distinguished from other athyridaceans by: the possession of a smooth brachial valve; a cardinal process which is rod-like, bordered by extensions of the socket plates, and has an alveolus or pit at the base; the lack of a cardinal plate; and the lack of well-defined dental plates. In New South Wales Rawdonia nasharae ranges from the Delepinea aspinosa Zone to the Rhipidomella fortimuscula Zone.