Synonym: Semionotus serratus Fraas 1861 [nomen dubium]
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: Semionotiformes according to A. López-Arbarello 2012
Sister taxa: Alleiolepis, Allelepidotus, Aphelolepis, Austrolepidotus, Callipurbeckiidae, Callopteus, Corunegenys, Dapediidae, Enigmatichthys, Heterostrophus, Luoxiongichthys, Macrosemiidae, Orthurus, Pericentrophorus, Plesiolepidotus, Prionopleurus, Sangiorgioichthys, Semionotoidei, Serrolepis, Sinosemionotus, Sphathiurus
Subtaxa: Acentrophorus, Aetheolepis, Aphnelepis, Archaeolepidotus, Archaeosemionotus, Asialepidotus, Cleithrolepis, Colobodus, Dandya, Eosemionotus, Hemicalypterus, Pristisomus, Sargodon, Semionotus, Tetragonolepis, Tianfuichthys
Ecology: nektonic carnivore