Recent anatomical studies have revealed further details about the skull structure and axial skeleton of Tiktaalik

los cuernos y el comportamiento de rebaño podrían haberle proporcionado una defensa eficaz contra ataques de los carnívoros

6 million years ago to about 46

making it a fast and highly efficient swimmer

millions of years ago

Spicomellus afer Variant:Unprimed Recent anatomical studies have revealedSpicomellus afer is an ankylosaurid dinosaur discovered in Morocco and described for the first time in 2021. It has established itself as one of the most unique discoveries in recent paleontology. It is the oldest known ankylosaurid to date, with an estimated age of about 165 million years , during the Middle Jurassic, making it also the first representative of this group documented in Africa. The name Spicomellus afer means "African spiny collar," a