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	 Protocetus atavus
|  | 질의: Description | 결과: 9036번째/10150 |  | 
 
| 제목: | Protocetus atavus 
 |  | 올린이: | Wiki Photos (---@---.---) 
 |  |  |    | 해상도: 800x402
파일크기: 18294 Bytes
등록시간: 2017:01:26 17:00:10 | 
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동물그림창고 똑똑전화 누리집
^o^| Description
 Protocetus atavus, an early whale from the middle Eocene of Egypt, pencil drawing, digital coloring
 Date	6 January 2008
 Source	Own work
 Author	Nobu Tamura
 Source: https://commons.wikimedia.org/wiki/File:Protocetus_BW.jpg
 
 Protocetus atavus ("first whale") is an extinct species of primitive cetacean from Egypt. It lived during the middle Eocene period 45 million years ago. The first discovered protocetid, Protocetus atavus was described by Fraas 1904 based on a cranium and a number of associated vertebrae and ribs found in middle Lutetian Tethyan marine limestone from Gebel Mokattam near Cairo, Egypt. Order:	Artiodactyla, Infraorder:	Cetacea, Family:	Protocetidae, Subfamily:	Protocetinae.
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