Predatorial Borings in Late Precambrian Mineralized Exoskeletons

@article{Bengtson1992PredatorialBI,
  title={Predatorial Borings in Late Precambrian Mineralized Exoskeletons},
  author={Stefan Bengtson and Yue Zhao},
  journal={Science},
  year={1992},
  volume={257},
  pages={367 - 369}
}
The late Precambrian tube-forming Cloudina, the earliest known animal to produce a mineralized exoskeleton, shows evidence of having been attacked by shell-boring organisms. Of more than 500 tubes from Shaanxi Province, China, 2.7% have rounded holes 40 to 400 micrometers in diameter. The relation between the size of the holes and the width of the bored tubes suggests that the attacking organism was a predator, selecting its prey for size. If true, this would be the oldest case of predation in… 
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