Palaeontology Spider-web silk from the Early Cretaceous

The use of viscid silk in aerial webs as a means to capture prey was a key innovation of araneoid spiders and has contributed largely to their ecological success. Here I describe a single silk thread from a spider's web that bears glue droplets and has been preserved in Lebanese amber from the...

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Bibliographic Details
Published in:Nature 2003-08, Vol.424 (6949), p.636-637
Main Author: Zschokke, Samuel
Format: Article
Language:English
Subjects:
Adhesives
Amber
Animals
Fossils
Insect Proteins
Lebanon
Silk
Spiders - classification
Spiders - physiology
Time Factors
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Summary:The use of viscid silk in aerial webs as a means to capture prey was a key innovation of araneoid spiders and has contributed largely to their ecological success. Here I describe a single silk thread from a spider's web that bears glue droplets and has been preserved in Lebanese amber from the Early Cretaceous period for about 130 million years. This specimen not only demonstrates the antiquity of viscid silk and of the spider superfamily Araneoidea, but is also some 90 million years older than the oldest viscid spider thread previously reported in Baltic amber from the Eocene epoch.
ISSN:0028-0836
1476-4687
DOI:10.1038/424636a