 
A memento discovered in Roathus Lagoon.
Summons pet Anklegator in the Bastion after speaking to Zia.
Most likely the offspring of 'Queen Anne'.
Description
"It is very large and heavy, and its occupant sounds to be alive.
Anklegators were thought to be extinct, because their eggs took decades to hatch and were easy prey.
The Calamity must have unearthed this one."
Dialogue
To Rucks: "Ever seen anything like this before?"
- "They say Queen Anne was just a folktale. Now there's livin' proof she ain't."
To Zia: "Do you think an Anklegator could be tamed?"
- ""