Cetorhinus – Basking Shark Gill Raker
Middle Miocene (Mohnian)
Aguajito Shale Member, Monterey Fm.
Carmel
California, USA.

This Middle Miocene specimen provides a fascinating glimpse into the feeding anatomy of an ancient basking shark. Cetorhinus is especially interesting because the lineage survives today, with the modern basking shark representing one of the largest filter feeding fishes on Earth.
13mm gill raker on 86mm slab. First we have ever seen from this site.