How did the shape and size of the metatarsal heads (the ends of the foot bones) in Triassic dinosaurs relate to the distribution of weight in their feet?

Mar 28, 2025 ... Reptiles increased in diversity and number, and the first dinosaurs appeared, heralding the great radiation that would characterize this group ... These incredible creatures dominated the planet through three major geological periods: the Triassic, Jurassic, and Cretaceous periods. Early dinosaurs in the ... ... were almost completely gone and the dinosaurs began their 135 million-year domination on our planet. “Stiff Competition: For much of the Triassic period ... Mar 28, 2018 ... The earliest mammals entered the scene, and reptiles — including early dinosaurs — lived on Pangea, the name given to the giant landmass in ... Jun 21, 2023 ... This era is known as the Triassic Period. They were also accompanied by archosaurs, a group that included early dinosaurs. Exactly when ... Nov 2, 2016 ... ... Triassic period, a time when the first dinosaurs appeared and Earth's continents were a single land mass known as Pangea. Although symbiosis ... The first dinosaurs lived in the early Triassic. Other reptiles also lived in this period, such as plant-eating rhynchosaurs. Fish and turtles swam in the sea, ... Dr. Schachner explains a possible reason why dinosaurs were not only able to survive, but to thrive during the Triassic period more than 200 million years ago. Jun 15, 2015 ... One of the missing links in our understanding of the Triassic Period – between 252 and 201m years ago – is why there were so few dinosaurs ... ... lived, separated into the three distinct periods of the Age of Dinosaurs: Triassic, Jurassic, and Cretaceous. And museum scientists make good use of the ...