
Episode 156: Fossils and Dating Methods
From The Science of Everything Podcast by James Fodor
November 30, 2025 · 1h 11m · Episode 159
About this episode
This episode introduces techniques for studying the history and ages of geological specimens, covering various dating methods and fossilization processes.
An introduction to the techniques used to study the history and ages of geological speciments. We begin with an overview of chronostratigraphy, covering principles of relative dating, way up indicators, and biostratigraphy. We then discuss geochronology, including a review of early attempts to determine the age of the Earth, the principles and assumptions of radiometric dating, and the radioisotopes most commonly used for dating. Finally, we discuss processes and mechanisms of fossilisation, and review some of the most important classes of index fossils. Recommended pre-listening is Episode 74: Minerals and Rocks, and Episode 77: Nuclear Physics. If you enjoyed the podcast please consider supporting the show by making a PayPal donation or becoming a Patreon supporter. https://www.patreon.com/jamesfodor https://www.paypal.me/ScienceofEverything
People in this episode
Host: James Fodor
Topics covered
- fossils
- dating methods
- chronostratigraphy
- geochronology
- fossilization
- index fossils
Keywords
- fossils
- dating methods
- chronostratigraphy
- geochronology
- radiometric dating
- index fossils
Mentioned in this episode
Books & works: Episode 74: Minerals and Rocks, Episode 77: Nuclear Physics
More episodes of The Science of Everything Podcast
- Episode 161: Dinosaurs and Other Ancient Reptiles · June 1, 2026 · 1h 33m
- Episode 160: The Evolution of Animals · May 1, 2026 · 1h 23m
- Episode 159: Quantum Electrodynamics Part 2 · April 1, 2026 · 45 min
- Episode 158: Quantum Electodynamics Part 1 · March 1, 2026 · 51 min
- Episode 157: The Geologic Time Scale · January 17, 2026 · 1h 2m
- Episode 155: Embryology and Development · October 24, 2025 · 1h 10m
Explore listener stats, chart rankings, contacts and more on the The Science of Everything Podcast podcast page.