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Titania? She's the queen of fairies in A Midsummer Night's Dream and I think Amaura is very fairy-like, in an icey way. Also because it's similar to Titanic, no explanation there ;D
My nickname would be Aladar which is the name of the main character in the movie Dinosaur(by disney), granted this nickname would make better sense if the Amaura was male.
If it was female i guess Neera would also work (Aladar's love interest, and Kron's Sister from the same movie).
Even though they are technically a different species of dinosaur than Amaura is based from, they look similar enough to make sense.. And if you haven't seen Disney's Dinosaur you should watch it now! its a good movie.