Ceratosaurus was a medium-sized bipedal dinosaur

Swimming in concentric circles

It used the edges of its mouth to scrape the substrate and then filtered the ingested material using its comb-like teeth

The discovery of Antarctopelta not only expanded the known geographic range of ankylosaurs

Its front limbs

Protemnodon anak Variant:Hand-painted Ceratosaurus was a medium-sized bipedalProtemnodon anak was a large diprotodontid marsupial from the Pleistocene of Australia and New Guinea, belonging to the macropodidae group, which includes modern kangaroos and wallabies. It represents one of the largest species within the genus Protemnodon, characterized by a more robust body build and less specialized for jumping than modern kangaroos. Its skeleton shows a massive body, with a strong and relatively rigid spine, adapted to support