Acrognathus

Acrognathus (from Greek: άκρος ákros, 'high' and Greek: γνάθος gnáthos 'jaw')^[1] is an extinct genus^[2] of ray-finned fish belonging to the order Aulopiformes.^[3] Although no extensive systematic analysis has been performed, it is tentatively placed with the greeneyes in the family Chlorophthalmidae, making it the oldest representative of that family.^[4]

Acrognathus Temporal range: Upper Cenomanian to Turonian, 95–89 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Aulopiformes
Family:	Chlorophthalmidae
Genus:	†Acrognathus Agassiz, 1836
Type species
†Acrognathus boops Agassiz, 1836
Species
A. boops Agassiz, 1836 A. dodgei Hay, 1903 A. libanicus Woodward, 1901

The following species are known:^[3]

• A. boops Agassiz, 1836 (late Cenomanian/Coniacian to Turonian of the United Kingdom)^[5]
• A. dodgei Hay, 1903 (late Cenomanian of Lebanon)
• A. libanicus Woodward, 1901 (late Cenomanian of Lebanon)