Eoeugnathus

Eoeugnathus (Greek for "dawn true-jaw") is an extinct genus of prehistoric marine ray-finned fish belonging to the Halecomorphi.^[1] Eoeugnathus existed during the Middle Triassic in what is now Europe.^[2][3]

E. belliotti specimen, Civico Museo Insubrico di Storia Naturale

Eoeugnathus Temporal range: Anisian-Ladinian PreꞒ Ꞓ O S D C P T J K Pg N ↓
E. megalepis specimen, Milan Natural History Museum
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Clade:	Halecomorphi
Order:	†Ionoscopiformes
Family:	†Subortichthyidae
Genus:	†Eoeugnathus Brough, 1939
Type species
†Eoeugnathus megalepis Brough, 1939
Species
E. bellottii (Rueppel, 1857) E. megalepis Brough, 1939

It contains two species:^[4][5]

• E. bellottii (Rueppel, 1857) - Ladinian of Italy and Switzerland (Meride Formation, Perledo-Varenna Formation) (=Allolepidotus bellottii Rueppel, 1857)^[5]
• E. megalepis Brough, 1939 (type species) - latest Anisian to late Ladinian of Italy (Besano Formation), Switzerland (Prosanto Formation), and Spain (Muschelkalk)^[3]

It was initially placed in the Caturidae and then the Panxianichthyiformes,^[6] but more recent studies have placed it in the new ionoscopiform family Subortichthyidae.^[5][7]

See also

• Paleontology portal
• Fish portal

• Prehistoric fish
• List of prehistoric bony fish