Universität zu Köln

Schoenemann, Brigitte ORCID: 0000-0002-4846-0255, Parnaste, Helje ORCID: 0000-0002-2063-1331 and Clarkson, Euan N. K. (2017). Structure and function of a compound eye, more than half a billion years old. Proc. Natl. Acad. Sci. U. S. A., 114 (51). S. 13489 - 13495. WASHINGTON: NATL ACAD SCIENCES. ISSN 0027-8424

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Abstract

Until now, the fossil record has not been capable of revealing any details of the mechanisms of complex vision at the beginning of metazoan evolution. Here, we describe functional units, at a cellular level, of a compound eye from the base of the Cambrian, more than half a billion years old. Remains of early Cambrian arthropods showed the external lattices of enormous compound eyes, but not the internal structures or anything about how those compound eyes may have functioned. In a phosphatized trilobite eye from the lower Cambrian of the Baltic, we found lithified remnants of cellular systems, typical of a modern focal apposition eye, similar to those of a bee or dragonfly. This shows that sophisticated eyes already existed at the beginning of the fossil record of higher organisms, while the differences between the ancient system and the internal structures of a modern apposition compound eye open important insights into the evolution of vision.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schoenemann, Brigitte UNSPECIFIED orcid.org/0000-0002-4846-0255 UNSPECIFIED Parnaste, Helje UNSPECIFIED orcid.org/0000-0002-2063-1331 UNSPECIFIED Clarkson, Euan N. K. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-207754
DOI:	10.1073/pnas.1716824114
Journal or Publication Title:	Proc. Natl. Acad. Sci. U. S. A.
Volume:	114
Number:	51
Page Range:	S. 13489 - 13495
Date:	2017
Publisher:	NATL ACAD SCIENCES
Place of Publication:	WASHINGTON
ISSN:	0027-8424
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CAMBRIAN BURGESS SHALE; VISUAL-SYSTEM; ANIMALS; EVOLUTION; CRUSTACEA; ORIGIN; LAGERSTATTE; TRILOBITES; MORPHOLOGY; FOSSILS Multiple languages Multidisciplinary Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/20775