Osteichthyes - Semionotiformes - Semionotidae

Alternative spelling: Pristiosomus

Full reference: A. S. Woodward. 1890. The fossil fishes of the Hawkesbury Series at Gosford. Memoirs of the Geological Survey of New South Wales. Palaeontology 4:1-57

Parent taxon: Semionotidae according to A. S. Woodward 1890

See also Sepkoski 2002

Sister taxa: Acentrophorus, Aetheolepis, Aphnelepis, Archaeolepidotus, Hemicalypterus, Lepidotes, Paradapedium, Sargodon, Semionotus, Semionotus serratus, Tetragonolepis, Tianfuichthys, Mengius

Subtaxa: Pristisomus crassus Pristisomus gracilis Pristisomus latus

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Type: Pristisomus gracilis

Ecology: nektonic durophage-carnivore

Distribution: found only at Gosford Quarry (BMNH coll) (Triassic of Australia)

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Specimen images are retrieved through the ePANDDA API.