Brains of <i>Lyrarapax</i> and a Living Onychophoran (IMAGE)

University of Arizona

Brains of <i>Lyrarapax</i> and a Living Onychophoran

Caption

This is a side-by-side comparison reveals the similarity between the brain of a living onychophoran (green) and that of the anomalocaridid fossil Lyrarapax unguispinus (gray). Long nerves from the frontal appendages extend to paired ganglia lying in front of the optic nerve and connect to the main brain mass in front of the mouth. Anomalocaridids had a pair of clawlike grasping appendages instead of feelers.

Credit

Illustration by Nicholas Strausfeld

Usage Restrictions

This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.