Suture Lab is proud to be the birthplace of the ammonite suture paleoclimate proxy.

Ammonite sutures grew more complex in cold seawater. Read our recent research about the proxy below.

A new paleoclimate proxy from Cretaceous ammonite suture complexity aligned with δ18O and δ13C stable isotope ratios: sea-surface temperature and thermocline applications

Ammonite suture complexity as a paleoclimate indicator comparable to δ18O stable isotope ratios