Elopopsis

Elopopsis (meaning "Elops-like face") is an extinct genus of marine ray-finned fish that lived during the Late Cretaceous ( Cenomanian to Turonian) of Europe, North Africa and North America. It was a member of the Crossognathiformes, in the family Pachyrhizodontidae.^[1][2]

Elopopsis Temporal range: Early Cenomanian to Late Turonian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Crossognathiformes
Family:	†Pachyrhizodontidae
Genus:	†Elopopsis Heckel, 1856
Type species
†Elopopsis fenzli Heckel, 1856
Species
See text

It contains the following species:^[2][3][4]

• †E. crassus (Dixon, 1850) - early-mid Cenomanian to middle Turonian of England (English Chalk)^[5]
• †E. heckeli Reuss, 1857 - Cenomanian of the Czech Republic
• †E. fenzli Heckel, 1856 (type species) - late Cenomanian of Slovenia (Komen Limestone)
• †E. microdon Heckel, 1856 - late Cenomanian of Slovenia (Komen Limestone), Morocco (Jbel Tselfat), and Germany (Hesseltal Formation)
• †E. smithwoodwardi Bayer, 1905 - Turonian of the Czech Republic^[6]
• †E. ziegleri von der Marck, 1868 - late Turonian of Germany

Indeterminate remains referable to Elopopsis are known from the Cenomanian of Saskatchewan, Canada (Ashville Formation) and the United States (Greenhorn Limestone of Colorado, Graneros Shale of Nebraska), indicating that they inhabited the Western Interior Seaway early on.^[2][7] The former species "E." dentex from the Komen Limestone appears to be a specimen of Enchodus.^[3]

It was likely a predatory fish that fed on smaller fish. A well-preserved specimen of E. microdon from the Hesseltal Formation of Germany has fossilized intestinal casts.^[8]