How to pronounce“backboned”in English

For example, we know that our backboned ancestors came from the oceans thanks to fossils of fish-like animals that evolved legs and lungs,

we can get tracks beneath the sea for up to five years now, on a backboned animal.

call on 9/11 when the bank of New York which is the one of the two in fact it's the largest clearing Bank in the world it handles backboned cash and Treasury