Tetragonolepis

Tetragonolepis (from Greek: τετρα tetra, 'four', Greek: γονή gonḗ, 'angle', and Greek: λεπίς lepis 'scale')^[1] is an extinct genus of bony fish belonging to the family Dapediidae that lived during the Rhaetian–Hettangian ages (latest Triassic to earliest Jurassic).

Tetragonolepis Temporal range: 203.6–196.5 Ma PreꞒ Ꞓ O S D C P T J K Pg N Rhaetian to Middle Hettangian
Fossil
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Clade:	Ginglymodi
Order:	†Semionotiformes
Family:	†Semionotidae
Genus:	†Tetragonolepis Bronn, 1830
Species
†Tetragonolepis discus †Tetragonolepis semicincta