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A microworld in Triassic amber.

Alexander R Schmidt1, Eugenio Ragazzi, Olimpia Coppellotti

  • 1Museum für Naturkunde der Humboldt-Universität zu Berlin, 10115 Berlin, Germany. alexander.schmidt@museum.hu-berlin.de

Nature
|December 15, 2006
PubMed
Summary
This summary is machine-generated.

Ancient amber preserves microorganisms from 220 million years ago, revealing bacteria, fungi, algae, and protozoans. These findings show early food webs have remained morphologically unchanged for millions of years.

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Area of Science:

  • Paleontology
  • Microbiology
  • Geology

Background:

  • Amber is an excellent medium for preserving microorganisms.
  • Microbial inclusions in amber older than 135 million years are rare and previously undocumented.

Purpose of the Study:

  • To report the discovery of exceptionally preserved microorganisms in 220-million-year-old amber.
  • To investigate the palaeoecology and evolution of Lower Mesozoic microorganisms.

Main Methods:

  • Geological dating of amber samples.
  • Microscopic analysis of inclusions within amber.
  • Taxonomic classification of microorganisms.

Main Results:

  • Discovery of 220-million-year-old amber droplets containing diverse microorganisms.
  • Identification of bacteria, fungi, algae, and protozoans assignable to extant genera.
  • Preservation of microorganisms provides insights into Lower Mesozoic terrestrial ecosystems.

Conclusions:

  • The basal levels of terrestrial food webs have remained morphologically consistent from the Triassic to the present.
  • This discovery offers a unique window into the ancient microbial world and its evolutionary history.