Giant ant fossil discovered near Princeton by local resident
Simon Fraser University scientists say their research on the latest fossil find near Princeton is raising questions about how the dispersal of animals and plants occurred across the Northern Hemisphere some 50 million years ago, including whether brief intervals of global warming were at play.
A decade earlier, Archibald and collaborators discovered a gigantic Titanomyrma fossil from Wyoming in a museum drawer in Denver. “This ant and the new fossil from British Columbia are close in age to other Titanomyrma fossils that have been long known in Germany and England,” said Archibald. “This raises the questions of how these ancient insects traveled between continents to appear on both sides of the Atlantic at nearly the same time.
The researchers suggested in 2011 that this might be explained by geologically brief intervals of global warming around the time of Titanomyrma called “hyperthermals” creating short-term intervals of friendly conditions for them to cross. “If it was a smaller species, was it adapted to this region of cooler climate by reduction in size and gigantic species were excluded as we predicted back in 2011?” said Archibald. “Or were they huge, and our idea of the climatic tolerance of gigantic ants, and so how they crossed the Arctic, was wrong?”
المملكة العربية السعودية أحدث الأخبار, المملكة العربية السعودية عناوين
Similar News:يمكنك أيضًا قراءة قصص إخبارية مشابهة لهذه التي قمنا بجمعها من مصادر إخبارية أخرى.
Terrace founder George Little remembered with annual tea - Terrace StandardTerraceBC founder George Little remembered with annual tea
اقرأ أكثر »
Pedestrian in Fort St. John, B.C., killed by snow clearing equipment - Terrace StandardBystanders provided first aid but the unresponsive victim was pronounced dead in hospital
اقرأ أكثر »
Tim Hortons customers subject to ‘technical error’ incorrectly saying they’d won $10K - Terrace StandardRestaurant says ‘small subset’ of players being compensated with $50 gift card instead
اقرأ أكثر »
Career criminal with almost 100 convictions rams Keremeos police car - Terrace StandardBlake Tyler Dunstall drove into the officer’s vehicle in an attempt to escape
اقرأ أكثر »
B.C. auditor general renews calls for better fraud risk management in public bodies - Terrace StandardMore than half of public bodies had been the victim of some form of fraud in the past year
اقرأ أكثر »
Annual count of Metro Vancouver homeless underway after pandemic hiatus - Terrace Standard11 municipalities across the Lower Mainland are taking part in the 24-hour, point-in-time count
اقرأ أكثر »