Meet Wadisuchus kassabi: The Oldest Crocodile Ancestor Found in Egypt

Scientists have uncovered the oldest known crocodile ancestor in Egypt, named Wadisuchus kassabi. The discovery pushes back the timeline of dyrosaurid evolution by millions of years. Fossils of this ancient predator reveal surprising details about its anatomy and lifestyle. Wadisuchus kassabi lived around 80 million years ago, making it the earliest dyrosaurid ever found. Its remains show unique features: four front teeth instead of the usual five, a deep notch at the tip of its snout, and nostrils positioned on top for breathing while submerged. These traits confirm that long, slender snouts—known as longirostry—developed early in this crocodile lineage.

The creature measured between 11.5 and 13 feet (3.5–4 metres) long and likely hunted fish and turtles in both freshwater and saltwater habitats. Its discovery in Egypt strengthens the case for North Africa as a critical region in dyrosaurid origins. Another ancient relative, *Wahasuchus egyptensis*, was also found in the same Late Cretaceous area, suggesting a diverse crocodile population. Ancient Egyptians later revered crocodiles, associating them with the god Sobek and mummifying them. But *Wadisuchus kassabi* predates these cultural practices by tens of millions of years, offering a rare glimpse into the deep past of these reptiles.

The fossils of Wadisuchus kassabi rewrite the history of dyrosaurids, proving they diversified earlier than once believed. Its existence in North Africa highlights the region’s importance in crocodile evolution. Researchers now have clearer evidence of how these ancient predators adapted to aquatic life long before modern crocodiles appeared.