geotimescale 2
geotimescale 2
Represents the timeline of Earth’s geologic history and provides information for significant events. Includes names of the eons, eras, periods, epochs, and ages along with their corresponding dates.

You will Learn:

  • the names of the eons, eras, periods, epochs, and ages
  • when various forms of life first appeared on Earth
  • significant geologic events in Earth’s history

Features Include:

  • a quick reference for students, educators, professional geologists, or anyone interested in geology
  • two views: with and without ages
  • no internet connection required; ideal for field use
  • universal app for iPhones and iPads

Grade levels:

  • 7–13
System Requirements
iPhone or iPad, iOS 8.4 or later


“Great reference to have, offers good information…”
Correlates to Next Generation Science Standards for Earth Science:
  • ESS1.C: The History of Planet Earth
  • ESS2.E: Biogeology
  • LS2.C: Ecosystem Dynamics, Functioning, and Resilience
Supports Common Core Literacy in Science Standards:
  • CCSS.ELA-LITERACY.RST.9-10.1,4,7
  • CCSS.ELA-LITERACY.RST.11-12.1,4,7
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