Semionotus Temporal range:248.1–184.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N Early Triassic toEarly Jurassic
Fossils ofS. bergeri
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Clade:	Ginglymodi
Order:	†Semionotiformes
Superfamily:	†Semionotoidea
Family:	†Semionotidae
Genus:	†Semionotus Agassiz, 1843

Semionotus (fromGreek:σημιονsemion, 'mark' andGreek:νῶτοςnôtos, 'back')^[1] is an extinct genus of ray-finned fish found throughout NorthernPangaea (North America andEurope) during the lateTriassic, becoming extinct in the EarlyJurassic.

• "Semionotus elegans"-Photo-High Res--"Shuttle Meadow Formation"-Hartford Basin, Connecticut;Article – www.sunstar-solutions.com–"Basal Jurassic Dinosaur Fossils"

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• Semionotiformes
• Prehistoric ray-finned fish genera
• Triassic bony fish
• Mesozoic fish of Europe
• Mesozoic fish of North America
• Taxa named by Louis Agassiz
• Prehistoric bony fish stubs

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