Holochroal eye
From Infogalactic: the planetary knowledge core
The Holochroal eye of Paralejurus sp.
Holochroal eyes are compound eyes with many tiny lenses (sometimes more than 15,000, each 30-100μm, rarely larger).[1] They are the oldest and most widespread type of trilobite eye,[2] and found in all orders of trilobite from the Cambrian to the Permian periods. Lenses show hexagonal close packing, and a single corneal membrane covered all lenses.[3] Unlike most modern arthropods, these eyes were not covered by the white layer known as the sclera.
References
<templatestyles src="Reflist/styles.css" />
Cite error: Invalid <references> tag; parameter "group" is allowed only.
<references />, or <references group="..." />.jpg)
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This Trilobite-related article is a stub. You can help Wikipedia by expanding it. |
