Archaeonectrus is an extinct genus of pliosaur from the Early Jurassic (Sinemurian) of what is now southeastern England. The type species is Archaeonectrus (originally "Plesiosaurus") rostratus, first named by Sir Richard Owen in 1865, which was moved to its own genus by N.I. Novozhilov in 1964. It was a relatively small plesiosaur, measuring 3.4–3.67 m (11.2–12.0 ft) long.[1][2]

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Additional specimen

Quick Facts Scientific classification, Type species ...
Archaeonectrus
Temporal range: Early Jurassic,
Sinemurian
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Holotype specimen NHMUK PV OR 38525
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Plesiosauria
Family: Rhomaleosauridae
Genus: Archaeonectrus
Novozhilov, 1964
Type species
Archaeonectrus rostratus
Owen, 1865
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Classification

Illustration of the holotype specimen, NHMUK PV OR 38525 (formerly BMNH 38525), dated to c. 1870
Life restoration

The cladogram below shows Archaeonectrus phylogenetic position among other plesiosaurs, following Benson et al. (2012).[3]

Plesiosauria 

See also

References

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