Banded guitarfish skull (Zapteryx exasperata). This is a lovely skull

This is a lovely skull of the Manx shearwater Manx shearwater skull Puffinus puffinus

This came with a collection of items from a Russian medical school

it was missing some teeth

The tooth is fully mineralised / fossilised and now feels like a piece of stone

America and Asia

Banded guitarfish skull (Zapteryx exasperata). This is a lovely skullThis is a beautifully prepared and mounted skull of a banded guitarfish Zapteryx exasperata. The banded guitarfish is an elasmobranch related to the rays although the body shape is half way between rays and typical shark form. Their diet is animals living in the sand and mud such as crabs and shellfish. As you can see on the jaws of this skull, the teeth are flattened for crushing hard shells. This skull has come from a specimen that was caught for