were more prominent in males and were probably used in dominance displays or ritual combat during the mating season

creating patches of light and shadow on the fern-covered ground

específicamente en lo que ahora es Argentina

in the ecosystems that now make up East Africa—especially in what is now Tanzania—complex ecological interactions developed between large herbivorous dinosaurs and their predators

Seymouria baylorensis Morrosaurus were more prominent in malesSeymouria baylorensis is an extinct species of tetrapod that lived during the Permian period, approximately 280 million years ago, in what is now North America. This animal is of particular interest to paleontologists, as it represents an evolutionary link between amphibians and early reptiles, displaying characteristics of both groups. Seymouria baylorensis had a relatively elongated and robust body, with a length of around 60 centimeters. Its skull