Armstrong, J. D. (1968). Synonymy of the Australian Permian spiriferid genera Trigonotreta Koenig, 1825 and Grantonia Brown, 1953. Journal of the Geological Society of Australia. 15(1): 79-86, pl. 6.

505059

Armstrong, J. D.

1968

15(1): 79-86, pl. 6.

Publication

Three names are available for two species of spiriferids with multi-ribbed valve flanks in the Berriedale Limestone in Tasmania. The valid names for the species are now considered to be Trigonotreta stokesi Koenig, 1825 and "Spirifer” tasmaniensis Morris, 1845; the other available name, Grantonia hobartensis, 1953, is a synonym of Trigonotreta stokesi. Grantonia Brown, 1953 (type species, Grantonia hobartensis) is therefore a synonym of Trigonotreta Koenig, 1825 (type species, Trigonotreta stokesi).

Brachiopoda

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