Talk:Margaret Formation
 | This article is rated Stub-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
| |||||||||||
External links modified edit
Hello fellow Wikipedians,
I have just modified one external link on Margaret Formation. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
- Added archive https://web.archive.org/web/20140731140924/http://fossilworks.org/ to http://www.fossilworks.org/
When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.
This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).
- If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
- If you found an error with any archives or the URLs themselves, you can fix them with this tool.
Cheers.—InternetArchiveBot (Report bug) 23:05, 16 January 2018 (UTC)
The statement 'Despite the mild Eocene Arctic climate, the vertebrate fauna would have experienced months of total darkness and cooler temperatures during the winter' is not quite accurate. If the Earth's rotational obliquity at the time was the same as it is now (23.5°), at a palaeo-latitude of 76.1° even at the winter solstice the Sun at noon would have been only 9.6° below the horizon, and would have given illumination equivalent to nautical twilight. I estimate that at the winter solstice, there would have been about 2 hours 22 minutes of nautical twilight before and after noon. Also, you are forgetting the Moon. — Preceding unsigned comment added by 86.31.65.236 (talk) 22:01, 16 February 2023 (UTC)