Wow Zephyer ? Not even in the field guide....
Who'd a thunk it. I looked it up here on the internet, and your right it looks a lot like a Zephyer. Do you know what era ? late arc or transitional perhaps. I found it less than two feet down on a medium size summer mound on Cypress Ck.
I'll have a lot better pictures of my stuff after this weekend hopefully.
I also have some other ancient american treasures that I will share when I get them properly documented.