Johnlongia | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Subdivision: | Selachimorpha |
Order: | Lamniformes |
Family: | Odontaspididae |
Subfamily: | † Johnlonginae |
Genus: | †
Johnlongia Siverson, 1996 |
Species | |
|
Johnlongia is an extinct genus of sand shark from the Cretaceous period. It contains two described species, J. parvidens and J. allocotodon, and possibly a third unnamed species from the Niobrara Chalk. [1] It is presumed piscivorous; however, it forms a clade with an early filter-feeding shark genus, Pseudomegachasma. [2]
Johnlongia | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Subdivision: | Selachimorpha |
Order: | Lamniformes |
Family: | Odontaspididae |
Subfamily: | † Johnlonginae |
Genus: | †
Johnlongia Siverson, 1996 |
Species | |
|
Johnlongia is an extinct genus of sand shark from the Cretaceous period. It contains two described species, J. parvidens and J. allocotodon, and possibly a third unnamed species from the Niobrara Chalk. [1] It is presumed piscivorous; however, it forms a clade with an early filter-feeding shark genus, Pseudomegachasma. [2]