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Emsian (Early Devonian) Tetracorals (Cnidaria) From Grattai Creek, New South Wales, Anthony Wright
Emsian (Early Devonian) Tetracorals (Cnidaria) From Grattai Creek, New South Wales, Anthony Wright
Anthony Wright
The tetracoral species Phillipsastrea scotti sp. nov. and Trapezophyllum grattaiensis sp. nov. are described from strata assigned to the middle Emsian (nothoperbonus to inversus conodont zones: Early Devonian) part of the Cunningham Formation at Grattai Creek, west of Mudgee, N.S.W. For comparison with the former, Phillipsastrea oculoides, from the Early Devonian (late Pragian or early Emsian) Garra Formation in the Wellington area of N.S.W., is revised on the basis of the type material; new longitudinal thin sections show indisputable horseshoe dissepiments and trabecular fans in this species.