Ammonoids and Quantitative Biochronology—A Unitary Association Perspective Ammonoid evolutionary changes have long been recognized to be excellent time markers. They are the major macrofossil group to date and correlate Paleozoic and Mesozoic marine strata. Originations and ...

Chapter 2.11 by Monnet et al. on #Ammonoids and #Quantitative #Biochronology —A Unitary Association Perspective: rdcu.be/eNedO

Latest further highlight the method based on #coexistences to produce robust ammonoid #biozonations:
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Most animals have their own version of tree rings – here’s how we biologists use them to help species thrive From whale earwax to bird feathers, almost all organisms keep a record of their existence.

#ThingsWithRings! Read this new @uk.theconversation.com article about some of the surprising biological archives out there, and what we can use them for... theconversation.com/most-animals...

#otoliths #archaeology, #forensics #fish #sclerochronology #biochronology @universityofessex.bsky.social