Troodon Posted June 24, 2021 Share Posted June 24, 2021 A new study reveals that nearly all types of dinosaurs that were present in the Arctic reproduced in the region, and remained there year-round. These dinosaurs encountered ~4 months of darkness per year, temperatures below zero, and snow https://www.cell.com/current-biology/fulltext/S0960-9822(21)00739-9?utm_source=EA 8 1 Link to comment Share on other sites More sharing options...
hadrosauridae Posted June 24, 2021 Share Posted June 24, 2021 Kinda puts another nail in the coffin of the old "cold blooded" theory. "There is no shortage of fossils. There is only a shortage of paleontologists to study them." - Larry Martin Link to comment Share on other sites More sharing options...
Troodon Posted June 24, 2021 Author Share Posted June 24, 2021 19 minutes ago, hadrosauridae said: Kinda puts another nail in the coffin of the old "cold blooded" theory. Surprised to read that they were non-migratory - maybe they built giant igloos or had lots of BONE fires. 2 Link to comment Share on other sites More sharing options...
Troodon Posted June 24, 2021 Author Share Posted June 24, 2021 articles on this topic https://www.smithsonianmag.com/science-nature/dinosaurs-nested-high-arctic-180978050/#.YNSqtnELIwE.twitter https://scitechdaily.com/were-dinosaurs-warm-blooded-research-team-discovers-arctic-dinosaur-nursery 1 1 Link to comment Share on other sites More sharing options...
RJB Posted June 25, 2021 Share Posted June 25, 2021 With continental drift, I thought the artic was a lot farther south back in those days? Now im confused, which is easy for me nowadays. RB Link to comment Share on other sites More sharing options...
RuMert Posted June 25, 2021 Share Posted June 25, 2021 Thanks for the info! I always wondered if polar dinos were that cold-resistant or the poles were that warm. Perhaps something inbetween My sites & reports Link to comment Share on other sites More sharing options...
Troodon Posted June 25, 2021 Author Share Posted June 25, 2021 22 minutes ago, RJB said: With continental drift, I thought the artic was a lot farther south back in those days? Now im confused, which is easy for me nowadays. RB Map of 94 mya , alaska not super different than today...paleoportal says north america was moving northwest during late cretaceous. Artic circle latitude today is 66 degrees so these guys were closer to Santa Link to comment Share on other sites More sharing options...
Troodon Posted June 25, 2021 Author Share Posted June 25, 2021 10 hours ago, RuMert said: Thanks for the info! I always wondered if polar dinos were that cold-resistant or the poles were that warm. Perhaps something inbetween Global Cretaceous temps were much warmer than today and no polar ice caps. So warmer but they still had to endure freezing temps in the winter. 1 Link to comment Share on other sites More sharing options...
AK hiker Posted June 25, 2021 Share Posted June 25, 2021 Going for a hike today and saw this while checking the weather. Relates directly to this thread. 1 2 Link to comment Share on other sites More sharing options...
RJB Posted June 26, 2021 Share Posted June 26, 2021 On 6/25/2021 at 5:52 AM, Troodon said: Map of 94 mya , alaska not super different than today...paleoportal says north america was moving northwest during late cretaceous. Artic circle latitude today is 66 degrees so these guys were closer to Santa I did not know this. and thanks for the map. Ya learn something everyday here on the forum. Thanks man RB Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now