Herrerasaurus ischigualastensis is a dinosaur that lived during the Triassic period

including large lungs to store oxygen during prolonged dives

with forelegs somewhat shorter than the hindlegs

leading to the extinction of many species

Its vertebral column was reinforced with vertebrae interconnected by strong ligaments

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