Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence, ...

Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use ...

Recommended color coding of stages / F.M. Gradstein and J.G. Ogg -- Appendix 2. Orbital tuning calibrations and conversions for the Neogene period / L. Lourens ... [et al.] -- Appendix 3.

- Understanding the geologic time scale and how to organize Earth’s history into a coherent timeline. MS-LS4-1: Analyze and interpret data for patterns in the fossil record that document the existence ...