Anguanax

An-gwa-naks.
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Emerson Winslow

Paleoichthyologist

Emerson Winslow delves into the underwater world of prehistoric fish, uncovering the mysteries of early marine life. His discoveries have enhanced understanding of vertebrate evolution in aquatic environments.

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Name

Anguanax ‭(‬Anguana lord‭)‬.

Phonetic

An-gwa-naks.

Named By

Andrea Cau‭ & ‬Federico Fanti‭ ‬-‭ ‬2015.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Sauropterygia,‭ ‬Plesiosauria,‭ ‬Pliosauridae.

Diet

Carnivore/Piscivore.

Species

A.‭ ‬zignoi‭

Size

Roughly estimated to have been about‭ ‬3-4‭ ‬meters in length.

Known locations

Italy‭ ‬-‭ ‬Rosso Ammonitico Veronese Formation.

Time Period

Oxfordian of the Jurassic.

Fossil representation

Partial skull and partial post cranial skeletal remains.

In Depth

       Descriptions of the fossils of Anguanax first came to press in‭ ‬2014,‭ ‬though the genus was not officially named until‭ ‬2015‭ ‬when further fossil remains could be described for it.‭ ‬With the first fossils coming from Northern Italy,‭ ‬Anguanax is recognised as being the he first pliosaur genus to be known from articulated remains from Italy.‭

       While most people are familiar with the truly huge monstrous pliosaurs such as Pliosaurus,‭ ‬Anguanax seems to have been much smaller and a predator specialising in smaller animals.‭ ‬The reconstructed length of Anguanax falls somewhere between three and four meters in length,‭ ‬big enough to cause some trouble,‭ ‬but not an apex predator of the Jurassic seas.‭ ‬Though‭ ‬the skull is incomplete,‭ ‬the jaws of Anguanax were proportionately longer and more lightly built,‭ ‬with only small pointed teeth that would have been of little use against similarly sized marine reptiles.‭ ‬Instead Anguanax was more likely a predator of fish which chose to try and stay out of the way of its larger pliosaur relatives.

Further Reading

-‭ ‬A pliosaurid plesiosaurian from the Rosso Ammonitico Veronese Formation of Italy.‭ ‬-‭ ‬Acta Palaeontologica Polonica‭ ‬59‭ (‬3‭)‬:‭ ‬643‭–‬650.‭ ‬-‭ ‬Andrea Cau‭ & ‬Federico Fanti‭ ‬-‭ ‬2014. -‭ ‬High evolutionary rates and the origin of the Rosso Ammonitico Veronese Formation‭ (‬Middle-Upper Jurassic of Italy‭) ‬reptiles.‭ ‬-‭ ‬Historical Biology:‭ ‬An International Journal of Paleobiology.‭ ‬-‭ ‬Andrea Cau‭ & ‬Federico Fanti‭ ‬-‭ ‬2015.

SPECIES SPOTLIGHT