The Wadi Al-Hitan (Whale Valley) (Wadi al-Hitan) is a UNESCO World Heritage Site in Egypt's Western Desert containing Basilosaurus (ancient whale) fossils preserved in excellent condition within Middle Eocene sedimentary formations. The site has yielded around 600 Basilosaurus specimens alongside other archaic whale species and marine creatures. Basilosaurus lived approximately 40 million years ago, and the exceptional fossil preservation at Wadi al-Hitan provides invaluable evidence of whale evolution from land mammals to fully aquatic creatures.
Wadi Al-Hitan (Whale Valley) reveals catastrophic extinction event with whale fossils

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Key facts
- Petrified forest contains hundreds of massive 40-million-year-old tree logs
- Logs aligned and stripped of bark, likely deposited by catastrophic flooding
- Wadi Al-Hitan (Whale Valley) (Wadi Elan) is UNESCO World Heritage Site
- Basilosaurus (ancient whale) fossils found alongside petrified trees
- Whale and other marine creature bones preserved in excellent condition
- All species found in same sedimentary layers indicating mass extinction event
- Hypothesized cause: volcanic activity poisoned water, killing marine life and trees simultaneously
- Massive sedimentation and ash fall buried organisms, enabling fossilization
Sources
The Valley of the Whales ( Wadi Hitan ) | Explore Fayoumfayoumegypt.com
Wadi Al-Hitan in Egypt's Western Desert is the only place in the world where the skeletons of families of archaic whales can be seen.
Wadi al Hitan - Wikipediaen.wikipedia.org
Wādī al-Ḥītān is a paleontological site in the Faiyum Governorate of Egypt, some 150 kilometres (93 mi) south-west of Cairo. It was designated a UNESCO ...
Wadi Al Hitan: How To Visit Egypt's Valley Of The Whalespassportandpixels.com
The most commonly found fossil here is Basilosaurus, a prehistoric whale that lived about 40 million years ago. They've found around 600 of them in the Wadi ...
Discover Wadi El Hitan: Egypt's Whale Valley of Fossilsegypttoursportal.com
Explore Wadi El Hitan, Egypt's UNESCO site with 40-million-year-old whale fossils, rare wildlife, striking geology, and the Middle East's ...
Guide 8 – Case Study: Wadi Al-Hitan (Egypt) - World Heritage Centrewhc.unesco.org
Wadi Al-Hitan – also known as Whale Valley – is located in the Western Desert of Egypt. It is an 'open-air museum' of invaluable fossil remains.
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