Fayl:Plaque in Wadi El Hitan, Egypt.jpg
| Taʼrif |
Wadi Al-Hitan is a very important fossil site that firmly establishes the fossil record of whale evolution from land mammals, one of Darwin's major assertions in The Origin of Species. The wadi hosts skeletons of families of archaic whales in their original geological and geographic setting of the shallow nutrient-rich bay of an early sea of some 30-40 million years ago, in what is now central Egypt. There is no other place in the world yielding archaic whale fossils of such quality in such abundance and concentration -- over 400 cetacean skeletons have been discovered, the most important finds coming between 1985-1995. Many of the sirenians and cetaceans are preserved as virtually complete articulated skeletons which, uniquely, preserve reduced hind limbs, making them intermediate between earlier land mammals and later modern whales. In addition to the whale fossils, numerous other fossils of plant and animal life provide a rich picture of the ecology of the Tethyan Ocean during Eocene time, enabling interpretation of how animals then lived and how they were related to each other. These fossils are the subject of continuing study and are of iconic value for the study of evolutionary transition, and make the site vitally important as a niche in Earth's natural history. |
| Sanasi | |
| Manba | Wadi El Hitan, Egypt |
| Muallif | Tom Horton from Shanghai, China |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
|---|
Litsenziyalash
- Siz erkinsiz:
- ulashishga – ishlanmani nusxalash, tarqatish va uzatish
- remiks qilishga – ishni moslashtirishga
- Quyidagi shartlar asosida:
- atribut – Siz tegishli litsenziyaga havolani taqdim etishingiz va oʻzgartirishlar kiritilganligini koʻrsatishingiz kerak. Siz buni har qanday oqilona yoʻl bilan qilishingiz mumkin, lekin litsenziar Sizni yoki Sizning foydalanishingizni ma'qullashini taklif qiladigan tarzda emas.
- bir xil ulashish – Agar Siz materialni remiks qilsangiz, oʻzgartirsangiz yoki unga asoslansangiz, oʻz hissalaringizni asl nusxadagi kabi bir xil yoki mos litsenziya ostida tarqatishingiz kerak.
|
This image was originally posted to Flickr by Further to Fly at https://www.flickr.com/photos/12116760@N00/2368837996. It was reviewed on 20 may 2009 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-sa-2.0. | 
|
Fayl tarixi
Faylning biror paytdagi holatini koʻrish uchun tegishli sana/vaqtga bosingiz.
| Sana/Vaqt | Miniatura | Oʻlchamlari | Foydalanuvchi | Izoh | |
|---|---|---|---|---|---|
| joriy | 08:02, 2009-yil 20-may | | 2 363 × 1 640 (1,58 MB) | wikimediacommons>Tm | {{Information |Description= Wadi Al-Hitan is a very important fossil site that firmly establishes the fossil record of whale evolution from land mammals, one of Darwin's major assertions in The Origin of Species. The wadi hosts skeletons of families of ar |
Fayllarga ishoratlar
Bu faylga quyidagi sahifa bogʻlangan:
