You are a Plesiosaur!

Plesiosaur

The Plesiosaur was a marine reptile that became extinct at the same time as the dinosaurs. The closely related Pliosaur was a top ocean predator, described as "a crocodile on steroids" but the long neck of the Plesiosaur earned it the description of "a snake through a sea turtle".

Some believe that the Loch Ness Monster may be a Plesiosaur, and just like Nessie, you can be secretive and mysterious at times - but you're an enchanting enigma for those who believe in you!