Altispinax

Al-tee-spy-nax.
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John Stewart

Paleoecologist

John Stewart is a distinguished paleoecologist whose work has significantly advanced our understanding of prehistoric ecosystems. With over two decades dedicated to unearthing fossils across Asia and Africa

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Name

Altispinax ‭(‬High spine‭)‬.

Phonetic

Al-tee-spy-nax.

Named By

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda, Carnosauria.

Diet

Carnivore.

Species

A.‭ ‬dunkeri‭

Size

Highly uncertain, but roughly estimated to be about 8 meters long.

Known locations

Germany,‭ ‬Niedersachsen‭ ‬-‭ ‬Obernkirchen Sandstein.

Time Period

Barremian of the Cretaceous.

Fossil representation

Teeth.

In Depth

       Originally described as belonging to a species of Megalosaurus in‭ ‬1884,‭ ‬Friedrich von Huene renamed the fossils of teeth and vertebrae to Altispinax in‭ ‬1923.‭ ‬This name reflects the size of the neural spines of the vertebrae,‭ ‬fossils that were later attributed to the genus after it was established upon the description of teeth. The vertebrae of Altispinax were once removed to create a new dinosaur genus named Becklespinax.‭ ‬This led to Altispinax becoming a tooth taxon for many years until a‭ ‬2016‭ ‬review of the fossils by Maisch led to the vertebrae being moved back into Altispinax,‭ ‬thus rendering Becklespinax a synonym to Altispinax.‭

Further Reading

– A revision of the parainfraclass Archosauria Cope, 1869, excluding the advanced Crocodylia. – Mesozoic Meanderings 2:1-196 – G. Olshevsky – 1991. – The nomenclatural status of the carnivorous dinosaur genus Altispinax v. Huene, 1923 (Saurischia, Theropoda) from the Lower Cretaceous of England. – Neues Jahrbuch f�r Geologie und Pal�ontologie – Abhandlungen, 280(2): 215-219. M. W. Maisch – 2016.

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