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Temporal range: Cretaceous
An artist's illustration of Acamptonectes densus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: †Ichthyosauria
Family: †Ophthalmosauridae
Subfamily: †Ophthalmosaurinae
Genus: Acamptonectes
Fischer et al., 2012
Species: A. densus
Binomial name
Acamptonectes densus
Fischer et al., 2012

Acamptonectes is an extinct genus of ichthyosaur which lived during the Hauterivian to Cenomanian stages of the Cretaceous period. Its remains have been discovered in the United Kingdom and Germany.