| Diet | Carnivore |
| Height | 0.8m |
| Length | 2.5m |
| Weight | 25 kg |
| Environment | Land |
| Era | Triassic |
| Period | Triassic |
| Type | Theropod |
| Location | Argentina |
Lepidus was a small theropod dinosaur that lived during the Middle Triassic period, approximately 227 million years ago. This early dinosaur inhabited what is now Argentina, in the ancient landscapes of South America during a time when dinosaurs were just beginning to diversify and establish themselves as dominant terrestrial predators.
Standing about 80 centimetres tall at the hip and measuring roughly 2.5 metres in length, Lepidus was a relatively small but agile predator. Like other early theropods, it walked on two legs and possessed sharp, curved claws on its hands and feet that would have been ideal for grasping prey. Its lightweight build and long legs suggest it was built for speed and manoeuvrability, essential traits for hunting in the competitive ecosystems of the Triassic period.
As a carnivore, Lepidus likely fed on small reptiles, early mammals, insects, and possibly fish. Its teeth were sharp and pointed, perfectly adapted for gripping and tearing flesh. The dinosaur's relatively long neck would have given it good reach when striking at prey, whilst its keen eyesight would have helped it spot movement from considerable distances.
Lepidus represents an important piece in understanding early dinosaur evolution, showing characteristics that would later be refined in more advanced theropod groups. Its discovery has helped palaeontologists better understand how early dinosaurs adapted to their environments and began their evolutionary journey towards becoming some of Earth's most successful predators.
Lepidus was characterised by its graceful, lightweight build with long, slender legs built for speed. It possessed the typical theropod features of sharp, curved claws and pointed teeth, but in a relatively small, agile package that distinguished it from bulkier contemporary reptiles.
Lepidus was likely an active hunter that relied on speed and agility to catch prey. Its small size suggests it may have been capable of quick bursts of acceleration and sharp turns when pursuing small, fast-moving animals across the Triassic landscape.
Lepidus was first described by Paul Sereno and colleagues in 1993. The original fossils were discovered at Ischigualasto Formation, Argentina.
