Ichthyostega stensioei Psittacosaurus Considered one of the earliest

Considered one of the earliest ancestors of modern elephants

derives from Latin and means "curved like a sickle"

such as its flexible spine and vestigial legs

energy storage

Its most striking aspect was its impressive head adorned with various thorns and horns

Ichthyostega stensioei Psittacosaurus Considered one of the earliestIchthyostega stensioei is an extinct tetrapod species that lived during the Devonian period, approximately 360 million years ago. It is known for being one of the earliest terrestrial vertebrates, representing an important stage in the evolution of four legged animals from aquatic forms. The name "Ichthyostega" means "fish roof," referring to its evolutionary transition from fish to terrestrial forms, while "stensioei" honors paleontologist Erik