Skip to main content

coordinated stasis

coordinated stasis The idea, proposed in 1992 by Gordon Baird, that certain groups of species remain unaltered for tens of millions of years, then experience an episode of rapid extinction and the formation of new species. This resembles punctuated equilibrium acting at the level of communities and may occur because the species interact so closely they cannot evolve, instead responding to environmental change by moving as a group to a more hospitable location. The fossil record of animals dwelling in ocean-bottom muds in the Silurian to middle Devonian appears to support the idea, but it is not accepted by all palaeontologists.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"coordinated stasis." A Dictionary of Earth Sciences. . 25 Mar. 2019 <>.

"coordinated stasis." A Dictionary of Earth Sciences. . (March 25, 2019).

"coordinated stasis." A Dictionary of Earth Sciences. . Retrieved March 25, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.