Mined from: Shark Tooth Hill, Bakersfield, California

Era: Cenozoic

Geological Age: 15 to 16 million years ago.

Description: These fossil dolphin ear bones are heavily mineralized particles of the inner ear of Dolphins. This particular bone structure help the creature understand its orientation in space which enables it to sense gravity. They help with overall acceleration and deceleration, which is essential for proper balance and movement control in aquatic settings. Dolphin inner ear bones develop before the dolphins are born, and serve as a record of their entire life. Much like trees, Dolphin inner ear bones grow rings allowing age to be determined in a similar manner.

Small
Approximate Size of 1 piece: 2.5cm x 2cm x 1cm
Approximate Weight of 1 piece: 5g

Large
Approximate Size of 1 piece: 3.5cm x 2.5cm x 2cm
Approximate Weight of 1 piece: 16.5g

Quantity: 1pc

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.