New research has revealed why it took more than 30 million years for large Triassic dinosaurs to populate the tropics after they first appeared on Earth, ending a mystery that has kept researchers baffled for decades. Using new geological evidence culled from Ghost Ranch, N.M., researchers from the University of Southampton in the U.K. have found that an extremely unpredictable hot and arid climate due to elevated carbon dioxide levels (four to six times of what they are today) kept large herbivorous dinos at bay until after 200 million years ago.
The team culled their evidence from an area that’s no stranger to hot and arid climates– Ghost Ranch, N.M. The scenic 21,000–acre retreat – famous as the place where artist Georgia O’Keefe painted for most of her career – was located close to the equator 205-215 million years ago at 12 degrees North (it lies at 36 degrees North today).
OH MY. MY, … so those researchers from the University of Southampton in the U.K. are claiming that what is now the State of New Mexico was located close to the equator during the Triassic Period of 205 to 215 million years ago and had a nasty …. “extremely unpredictable hot and arid climate due to elevated carbon dioxide levels” …. which kept or prevented large herbivorous dinosaurs from inhabiting that locale.
But, but, but, ……. that sure is an interesting claim being touted as factual science, …. given the fact that the State of Arizonais located right next door adjoining New Mexico, …. which must have had a completely different climate than New Mexico did during the Triassic Period because Arizona is where the Petrified Forest is located, to wit:
Petrified ForestNational Parkis a United States national park in Navajo and Apache counties in northeastern Arizona. Named for its large deposits of petrified wood ………..
The Petrified Forest is known for its fossils, especially fallen trees that lived in the Late Triassic, about 225 million years ago.
In addition to petrified logs, fossils found in the park have included Late Triassic ferns, cycads, ginkgoes, and many other plants as well as fauna including giant reptiles called phytosaurs, large amphibians, and early dinosaurs.
During this period, the region that is now the park was near the equator on the southwestern edge of the supercontinent Pangaea, and its climate was humid and sub-tropical. [https://en.wikipedia.org/wiki/Petrified_Forest_National_Park