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Related Concept Videos

The Fossil Record02:56

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The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
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Updated: Jan 20, 2026

Fossils, Carbon Dating and Fossil Record
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Developmental bias in the fossil record.

Illiam S C Jackson1

  • 1Department of Biology, Lund University, Sweden.

Evolution & Development
|September 3, 2019
PubMed
Summary

Plasticity-led evolution (PLE) offers a new lens for studying developmental bias in fossils. This research proposes methods to find evidence of PLE in the fossil record, linking it to macroevolutionary patterns.

Area of Science:

  • Evolutionary biology
  • Paleontology
  • Developmental biology

Background:

  • Developmental bias and plasticity are key in evolution, but understudied in fossils.
  • Existing research primarily uses extant systems.

Purpose of the Study:

  • To identify plasticity-led evolution (PLE) as a form of developmental bias observable in the fossil record.
  • To propose methods for detecting PLE in paleontological data.

Main Methods:

  • Summarizing the process of PLE, including genetic variation accumulation and release.
  • Comparing PLE patterns with concepts like quantum evolution and punctuated equilibrium.

Main Results:

  • Plasticity-led evolution is proposed as a mechanism accessible through fossil analysis.
Keywords:
cryptic genetic variationdevelopmental biasplasticity-led evolution

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  • Macroevolutionary patterns like punctuated equilibrium may reflect PLE.

    • Conclusions:

    • Paleontological investigation of PLE is feasible and promising.
    • Further research can provide crucial evidence for PLE in the fossil record.