Predatorial Borings in Late Precambrian Mineralized Exoskeletons

  title={Predatorial Borings in Late Precambrian Mineralized Exoskeletons},
  author={Stefan Bengtson and Yue Zhao},
  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… 

A lower Cambrian protoconodont apparatus from the Placentian of southeastern Newfoundland

A cluster of three pyritized, naturally arranged, conoidal sclerites has been found on a bedding surface in the lower Cambrian Chapel Island Formation in southeastern Newfoundland. The elements are

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Early Cambrian record of failed durophagy and shell repair in an epibenthic mollusc

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Complete, circular holes found on the thecae of 51 specimens of Devonian nucleocrinid blastoids are interpreted as biogenic in origin. Their morphology, their stereotyped position on the theca, and

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The univalved-bivalved transition during early on-togeny represents an important evolutionary event in ostracodes, with implications for crustacean classification, and implies that the ostracode ancestor achieved this bivalved capacity before the appearance of mineralized skeletons during the "Cambrian explosion".

Borings in Cloudina Shells: Complex Predator-Prey Dynamics in the Terminal Neoproterozoic

This study corroborates the existence of shell-drilling predation in the uppermost Neoproterozoic of China and shows prey selectivity and site-specific behavior, pointing to a level of Precambrian predator-prey interaction that approaches the complexity seen in younger Paleozoic benthic animal communities.

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Biogenic and abiogenic injuries in a Carboniferous Bellerophon (Gastropoda) from the Isle of Man, United Kingdom

ABSTRACT Two described specimens of the gastropod Bellerophon tenuifascia J. de C. Sowerby, 1824, from the Carboniferous (Asbian) of the Isle of Man, United Kingdom, preserve repaired injuries



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An ecological theory for the sudden origin of multicellular life in the late precambrian.

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    Proceedings of the National Academy of Sciences of the United States of America
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The sudden proliferation of complex food webs formed by taxa invading previously vacant adaptive zones produced an explosive diversification of life over a period of a few tens of millions of years.

The Influence of Naticid Predation on Evolutionary Strategies of Bivalve Prey: Conclusions from a Model

An age-structured two-species predator-prey model was developed to explore the possible role of selective predation by naticid gastropods in the evolution of the energy allocation of their bivalve

Why do organisms calcify

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Geerat Vermeij demonstrates that escalation--the process by which species adapt to, or are limited by, their enemies as the latter increase in ability to acquire and retain resources--has been a dominant theme in the history of life despite frequent episodes of extinction.

Vermeij for constructive comments on the manuscript. Supported by the Swedish Natural Science Research Council and the National Natural Science Foundation of China

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