I thought that some of you might find this interesting about colour vision having been purported to have existed in creatures some 300 million years ago specifically in fish.

 

 

Myllokunmingia - by Giant Blue Anteater (talk).Giant Blue Anteater at en.wikipedia [Public domain], from Wikimedia Commons" href="http://commons.wikimedia.org/wiki/File%3AMyllokunmingia.png

Although some 520 million years ago one of the first creatures thought to have a backbone was believed to have camera- like vision it was named Myllokunmingia though this is not proven.

Researchers have found from recently published studies of a fossilised fish called Acanthodes bridgei rods and cones which suggest such colour vision. The fossil is now in a Museum in Tokyo where the study took place.

The extremely well preserved specimen was originally found in the Hamilton Foundation which has many well-preserved fossils from about 300 million years ago – the Upper Carboniferous period. The area has estuary deposits yielding many specimens and is situated in Kansas U.S.A.

Acanthodes

In terms of evolution much remains unknown about vision as the soft tissue of the eye decays rapidly in most circumstances.

If you would like to know more there is the full report in the journal “Nature Communications” which was published on December 23rd 2014 which is chargeable apparently for the full document but there are a couple of articles on the web if you just key in something like “colour vision in fish 300 million years” into Google.

Charlotte

 

 

The Featured Image of this post is “Eye Sensitivity” by Skatebiker, vector by Adam Rędzikowski
[CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

The Main Image of this post is “Acanthodes” by Momotarou2012
[CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons