|A Peek At the Past: Fossil Patterns - Gradualism vs. Punctuated Equilibria|
In this evolution lesson, two sets of simulated fossils (caminalcules) are provided as cutouts. Students arrange them on two time scales. One set produces a visual example of gradualism; the other shows punctuated equilibria. Students will learn the following concepts: some evolutionary change is rapid and discontinuous, and some change is gradual; fossil patterns can provide clues to the past; and speciation explains evolutionary branching and diversification.
Intended for grade levels:
Type of resource:
Adobe Acrobat reader
Cost / Copyright:
Copyright 1999 ENSI (Evolution and the Nature of Science Institutes). This material may be copied only for noncommercial classroom teaching purposes, and only if this source is clearly cited.
DLESE Catalog ID: DLESE-000-000-004-822
Resource contact / Creator / Publisher:
Author: William F. McComas
Author: Brian J. Alters