Geological Timeline Chart

Photo Credit: http://andyckh.deviantart.com/art/Geological-Timeline-Chart-283922560
Fossils

 
Nautiloids, and Nautiloid Cephalopod Isorthoceras fossiles

Nautiloids, and Nautiloid Cephalopod Isorthoceras fossiles

At left = Devonian Age Coral, Right = Petrified wood

At left = Devonian Age Coral, Right = Petrified wood
Trilobite

Trilobite
Stromatolite

Stromatolite

 

Code Number: 8A50.34

Demo Title: Geological Timeline and Fossils - Earth

Condition: Good

Principle: Age of the Earth & Eras

Area of Study: Solar System

Equipment: 

Continuous Rolls of Adding Machine or Computer Paper.

Procedure:

Roll out a piece of paper of the proper length, and measure and label the eras.

We have some fossils that are quite good including dinosaur poop, petrified wood, some nautiloids, and nautiloid cephalopod isorthoceras fossiles from Graf, Iowa, plus some Devonian age coral that is 400 million years old from the Devonian Gorge in Iowa City, IA, all courtesy of our fossil gathering friends in the Physics Department and the Science Ed. Department.

Stromatolite fossils.

Toilet Paper Analogy for Geologic Time

References:

  • Joshua D. Thomas, Scott A. Lee, Max Cooley, Richard E. Irving, "The Mass of Hatchling Tyrannosaur and Sauropod Dinosaurs", TPT, Vol. 58, #6, Sept. 2020, p. 392.
  • Richard E. Zeebe and Lucas J. Lourens, "Solar System Chaos and the Paleocene–Eocene Boundary Age Constrained by Geology and Astronomy", Science, Vol. 365, #6456, Aug. 2019, p. 926.
  • Janice VanCleave, "Time Line", Dinosaurs for Every Kid - Easy Activities That Make Learning Science Fun, p. 46 - 49.
  • Nicole Wetsman, "Pale Blue Blip", Popular Science, Spring 2020, p. 8.
  • Steven I. Dutch, "Earth", 2003 Science Supplement (Spring), ISBN 0-7172-1575-x, Grolier Incorporated, p. 306 - 322.