Johnlonginae

Johnlonginae is an extinct subfamily of sand shark with two genera: Johnlongia and Pseudomegachasma. The latter genus is thought to have evolved from former. They are among the older sand sharks, and are only known from the Cretaceous period.[1]

Johnlonginae
Temporal range:
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Superorder: Galeomorphii
Order: Lamniformes
Family: Odontaspididae
Subfamily: Johnlonginae
Shimada, 2015
Genera

Johnlongia
Pseudomegachasma

References


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