Herrerasaurus ischigualastensis is a dinosaur that lived during the Triassic period

The legs are long and powerful with strong claws on the hands and feet

Their disappearance highlights the vulnerability of certain species to changes in their environment and other adverse factors

referring to the early period in which it lived

Deinotherium giganteum Variant:Hand painted Herrerasaurus ischigualastensis is a dinosaurDeinotherium giganteum : The forgotten colossus of the age of giants Among the colossi that populated the Neogene landscapes, one of the most enigmatic and spectacular was Deinotherium giganteum , a proboscis that, although related to modern elephants, had an unmistakable appearance and unique anatomy. Its name, which means "terrible beast," does justice to its imposing size and presence, but also reflects the awe it has generated since its discovery