Featured image titled…“Bait Ball” Museum of Jurassic Marine Life.
In a desperate attempt to avoid capture thousands of Thrissops fish swarm together into a bait ball. Trachyteuthis belemnites and Pectinatites ammonites also take action to leave the scene as three Ichthyosaurs (unnamed) hunt for prey. The youngest Ichthyosaur darts into the bait ball causing the Thrissops to separate and open a writhing circular window to the ocean surface above.
Used with kind permission from Paleocreations.com
Link for this event below: