Mesosaurus braziliensis, framed Spinosaurus had an oval outline

had an oval outline

The most abundant marine organisms in the Mazon Creek biota are jellyfish

Taung Child Skull reconstruction

Recent research that examined the microscopic bone structure of the tall neural spines in edaphosaurids has raised doubts about a thermoregulatory role for the sail and suggests that a display function is more plausible

The original fossil is currently being prepared further to separate the individual skull elements

Mesosaurus braziliensis, framed Spinosaurus had an oval outlineBeautiful plaque preserving a unique water dwelling early reptile form. Known from only South America and Africa, this distribution of Mesosaurus supports the understanding that these great continents were once joined together; Mesosaurus could easily swim rivers from one continent to another but salty oceans would have thwarted the freshwater creature from crossing an existing ocean. Mesosaurus sp. Early Permian (280 m. y. a.) Irati Formation Sao