Trilobita - Olenida - Olenidae

Alternative combination: Triarthrus goldwyerensis

Full reference: D. P. Legg. 1976. Ordovician trilobites and graptolites from the Canning Basin, western Australia. Geologica et Palaeontologica 10:1-58

Belongs to Porterfieldia according to R. Ludvigsen and P. A. Tuffnell 1983

See also Legg 1976

Sister taxa: Porterfieldia acava, Porterfieldia caecigena, Porterfieldia convergens, Porterfieldia cuadrata, Porterfieldia fischeri, Porterfieldia maanssonae, Porterfieldia parapunctata, Porterfieldia punctata, Porterfieldia sinensis, Porterfieldia thor, Porterfieldia turneri

Type specimen: UWA 71458, a cephalon/head (cranidium). Its type locality is Core 3, Thangoo No. 1, Canning Basin, which is in a Darriwilian carbonate shale/limestone in the Goldwyer Formation of Australia.

Ecology: fast-moving low-level epifaunal carnivore

Distribution: found only at Core 3, Thangoo No. 1, Canning Basin

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Specimen images are retrieved through the ePANDDA API.