flexible spine

they have been studied by paleontologists to better understand the evolution of dinosaurs in South America during the Middle Cretaceous

indicating that it was a carnivore

although with a far more specialised head and jaw

This behavior was likely related to seasonal environmental conditions and irregular resource availability in Madagascar's ecosystems during the Late Cretaceous

Vallibonavenatrix cani Archaeoceratops flexible spineVallibonavenatrix cani was a spinosaurid theropod dinosaur that lived during the Early Cretaceous period, approximately 127125 million years ago (Barremian stage), in what is now the province of Castelln, Spain. It is one of the most important spinosaurids discovered in Europe and one of the few Iberian taxa known from relatively diagnostic material. It was described in 2019 by Malafaia and colleagues from remains found at the Santa gueda site, near