Actinopteri - Semionotiformes - Semionotidae

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

Belongs to Semionotus according to A. S. Woodward 1890

Sister taxa: Semionotus bergeri, Semionotus capensis, Semionotus formosus, Semionotus kanabensis, Semionotus kapffi, Semionotus normanniae, Semionotus tenuis

Type specimen: Its type locality is Gosford Quarry (BMNH coll), which is in a Spathian/Bithynian lacustrine shale in the Terrigal Formation of Australia

Ecology: nektonic carnivore