A compound eye almost identical to those of modern bees and dragonflies has been found in a fossil trilobite that lived on the seabed 429 million years ago
Source:
https://www.newscientist.com/article/2251851-trilobites-living-429-million-years-ago-had-eyes-like-modern-insects/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home