How did #Geologists and #Paleontologists perform tests and realize that what happened at #Chicxulub was 66 mya, not 65?

#Dinosaurs #K–Pg #EndCretaceous

Challenges in correlating the Hell Creek–Ludlow Formation contact: a lithostratigraphic study in northwestern South Dakota, U.S.A. The Cretaceous–Paleogene (K–Pg) boundary marks a pivotal moment in Earth's history; understanding this transition at a regional scale provides critical insights into sedimentary processes and litholog...

#Lithostratigraphy #SouthDakotaGeology #EndCretaceous