Name: Iberospinus ‭(‬Iberian spine‭)‬.
Phonetic: I-be-roh-spy-nus.
Named By: Octávio Mateus‭ & ‬Darío Estraviz-López‭ ‬-‭ ‬2022.
Classification: Chordata,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Spinosauridae.
Species: I.‭ ‬natarioi‭ (‬type‭)‬.
Diet: Piscivore/Carnivore.
Size: Uncertain due to lack of remains.
Known locations: Portugal‭ ‬-‭ ‬Papo Seco Formation.
Time period: Barremian of the Cretaceous.
Fossil representation: Forward tip of dentary‭ (‬lower jaw‭) ‬and partial post cranial remains

       Fossils of Iberospinus were first discovered in‭ ‬1999‭ ‬and recovered over a period of a few years after.‭ ‬Initially thought to be further fossils of Baryonyx,‭ ‬they were later discovered to represent a new genus of spinosaurid dinosaur,‭ ‬leading to them being named as Iberospinus in‭ ‬2022.‭ ‬While Iberospinus fossils show some development similar to‭ ‬baryonchine spinosaurs,‭ ‬the genus itself was still held outside the group by the describing authors.‭ ‬Future fossils discoveries may make the establishment of evolutionary relationships easier to determine,‭ ‬but for now we will have to wait.
       Iberospinus fossils do show a development to at least a semi-aquatic lifestyle,‭ ‬and indeed the fossils location where the first Iberospinus fossils remains were discovered is thought to have been a lagoon during the early Cretaceous.‭ ‬It is still uncertain how well Iberospinus was adapted to aquatic hunting.‭ ‬Later genera like Spinosaurus seem to have been extremely well adapted,‭ ‬whereas baryonchine spinosaurs that existed earlier and at the‭ ‬same time as Iberospinus were less so.‭ ‬Again,‭ ‬future fossil discoveries may reveal so much more,‭ ‬just like they did with Spinosaurus.

Further reading
-‭ ‬A new theropod dinosaur from the Early Cretaceous‭ (‬Barremian‭) ‬of Cabo Espichel,‭ ‬Portugal:‭ ‬Implications for spinosaurid evolution.‭ ‬-‭ ‬PLOS ONE.‭ ‬17‭ (‬2‭)‬:‭ ‬e0262614‭ ‬-‭ ‬Octávio Mateus‭ & ‬Darío Estraviz-López‭ ‬-‭ ‬2022.


Random favourites