A collaborative painting with Csotonyi's wife, Alexandra Lefort (a planetary scientist and wildlife painter). Hoplophoneus is a 35 million-year-old nimravid, a group of mammals closely related to cats but not cats themselves.
Spinosaurus vs Giganotosaurus Carolinii - this is highly inaccurate. Spinosaurus lived in Africa and Giganotosaurus lived in South America. Also, Giganotosaurus did not have strong enough teeth to crush a skull like this.