Create an expansive and immersive image of a diverse array of dinosaurs inhabiting a vast grassy plain. Begin by modeling the wide-open landscape, featuring rolling hills, scattered trees, and patches of dense vegetation, all set against a sweeping sky. Populate the scene with a variety of dinosaur species, ranging from the towering sauropods like Brachiosaurus and Diplodocus to the fearsome theropods like Tyrannosaurus rex and Velociraptor. Include other herbivorous dinosaurs such as Triceratops, Stegosaurus, and Hadrosaurs, as well as smaller predators like Deinonychus and Troodon. Position the dinosaurs in dynamic poses, engaged in various activities such as grazing, hunting, or interacting with each other. Pay close attention to the anatomical accuracy and behavioral details of each dinosaur species to ensure authenticity. Utilize high-resolution textures and advanced rendering techniques to capture the subtle nuances of light and shadow, creating a visually stunning and lifelike depiction of a prehistoric ecosystem. --s 250