化石講場-Fossils Board 
» 遊客:  註冊 | 登錄 | 會員 | 幫助

RSS 訂閱當前論壇  


上一主題 下一主題
     
標題: 加拿大在北極地區發現鴨嘴龍化石  
 
fossilshk (Lung)
管理員
Rank: 9Rank: 9Rank: 9


研究員勳章   版主勳章   貢獻勳章   創意勳章   演講勳章   管理員勳章   榮譽勳章   出席勳章  
UID 1
精華 13
積分 3413
帖子 2183
閱讀權限 200
註冊 2006-7-14
來自 中國/香港
狀態 離線
[廣告]:
加拿大在北極地區發現鴨嘴龍化石

Hadrosaur, Northernmost Dinosaur Discovery, Survived Tough Nunavut Winters

The world's northernmost dinosaur find is a Canadian, according to a new paper, and it's telling scientists a great deal about how the creatures lived during the Cretaceous period.

A vertebra from a duck-billed, plant-eating hadrosaur was discovered on Axel Heiberg Island in what is now known as Nunavut in 1992, The Alaska Dispatch reported.

A recent scientific paper published in the journal Arctic says that the dinosaurs lived there year-round despite a lack of daylight and food sources.

The island was separated from the rest of North America by two seas: one ran from the Arctic Ocean to the Gulf of Mexico, the other went through northern Saskatchewan and Manitoba, CBC News reported.

The geography separating the island from other land bodies meant that the dinosaurs couldn't have migrated south in the winter.

Temperatures on the island were, on average, about 15 degrees warmer than they are today, but the Arctic saw 24 hours of darkness in the winter so there would have been very few plants for dinosaurs to eat.

The hadrosaur likely survived by eating twigs, branches and decaying wood with nutritious fungi that were found in the stomachs and the excrement of their species, Matthew Vavrek, curator and head paleontologist at the Philip J. Currie Dinosaur Museum in Grande Prairie, Alta, told the network.

The fossil discovered in Nunavut doesn't mark the only time that this particular dinosaur has been found buried in Canadian soil. Two such fossils were found in Alberta last year.

In October 2013, a fossil of the creature's tail, was found by a pipeline crew in the province's northwest area.

A second hadrosaur skeleton with its bones intact, was found by a construction crew in the city of Leduc in the following month.
http://www.huffingtonpost.ca/201 ... avut_n_5094151.html












2014-4-10 04:45 AM#1
查看資料  訪問主頁  發短消息  頂部
 
oviraptor (偷蛋龍)
超級版主
Rank: 8Rank: 8


版主勳章   貢獻勳章   創意勳章   演講勳章   榮譽勳章   出席勳章  
UID 2
精華 4
積分 1805
帖子 1160
閱讀權限 150
註冊 2006-10-16
來自 香港
狀態 離線
[廣告]:
究竟當時的天氣是不是跟現在一樣的呢



(\\\\\) (\\\\\) (\\\\\) (/////) (/////) (/////)
2014-4-11 06:29 PM#2
查看資料  發短消息  頂部
     


  可打印版本 | 推薦給朋友 | 訂閱主題 | 收藏主題  


 


{支持化石講場客戶廣告, 謝謝!}




本论坛支付平台由支付宝提供
携手打造安全诚信的交易社区   Powered by Discuz! 4.1.0  © 2001-2006 Comsenz Inc.
Processed in 0.019898 second(s), 6 queries

所有時間為 GMT+8, 現在時間是 2017-12-16 09:07 PM 清除 Cookies - 聯繫我們 - www.fossilshk.com - Archiver - WAP