Name: Pareisactus ‭(‬intruder‭)‬.
Phonetic: Pah-rye-sac-tus.
Named By: J.‭ ‬Párraga and A.‭ ‬Prieto-Márquez‭ ‬-‭ ‬2019.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Ornithischia,‭ ‬Ornithopoda,‭ ‬Rhabdodontidae.
Species: P.‭ ‬evrostos‭ (‬type‭)‬.
Diet: Herbivore.
Size: Unknown due to lack of fossil remains.
Known locations: Spain‭ ‬-‭ ‬Tremp Formation.
Time period: Late Cretaceous.
Fossil representation: Scapula.

       The name Pareisactus means‭ ‘‬intruder‭’‬,‭ ‬and this came about from the observation that out of several hundred hadrosaur bones,‭ ‬a single fossil of a scapula‭ (‬shoulder blade‭) ‬belonging to a rhabdodont dinosaur was found.‭ ‬This scapula was subsequently used to name the genus Pareisactus.‭ ‬Like hadrosaurs,‭ ‬rhabdodonts like Pareisactus were plant eating dinosaurs.‭ ‬However,‭ ‬most rhabdodonts are known from the early Cretaceous,‭ ‬but the presence of a rhabdodont bone in a late Cretaceous deposit shows that some rhabdodonts managed to co-exist with hadrosaurs.

Further reading
-‭ ‬Pareisactus evrostos,‭ ‬a new basal iguanodontian‭ (‬Dinosauria:‭ ‬Ornithopoda‭) ‬from the Upper Cretaceous of southwestern Europe.‭ ‬-‭ ‬Zootaxa‭ ‬4555‭(‬2‭)‬:247-258.‭ ‬-‭ ‬J.‭ ‬Párraga and A.‭ ‬Prieto-Márquez‭ ‬-‭ ‬2019.


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