Scientists discovered fossil shark teeth beneath Egypt's Western Desert that indicate the region was once a shallow sea [1, 2].
This discovery reshapes the understanding of Egypt's ancient environmental history by proving a desert landscape was once a marine ecosystem [1, 2].
Researchers examined the fossils to determine the nature of the prehistoric environment [1, 2]. The evidence suggests that millions of years ago, the area currently known as the Western Desert was covered by a productive body of water [1, 2]. This marine environment supported a variety of life, including the sharks that left behind the recovered teeth [1, 2].
The presence of these fossils indicates that the geological composition of the region has undergone a total transformation over millions of years [1, 2]. The shift from a shallow sea to one of the most arid deserts on Earth provides a timeline of the area's climatic, and tectonic changes [1, 2].
While the desert is now characterized by sand and rock, the fossilized remains serve as a biological record of a lost world [1, 2]. Scientists said the findings provide a new perspective on how sea levels and landmasses shifted in North Africa during ancient geological periods [1, 2].
The research team continues to analyze the site to determine the specific species of sharks present, and the overall biodiversity of the ancient sea [1, 2]. Such data helps researchers map the movement of ancient oceans and the evolution of marine life in the region [1, 2].
“The Western Desert of Egypt was once a shallow, productive sea.”
The discovery of marine fossils in a landlocked desert environment highlights the extreme volatility of Earth's paleoclimate. By identifying a prehistoric sea in the Western Desert, scientists can better model the historical migration of tectonic plates and the fluctuation of global sea levels, providing a clearer picture of how North Africa's geography evolved over millions of years.
