The death of #dinosaurs reengineered Earth https://news.umich.edu/your-ecosystem-engineer-was-a-dinosaur/

#Dinosaur extinction can explain continental facies shifts at the #Cretaceous-#Paleogene boundary https://www.nature.com/articles/s43247-025-02673-8

"their sudden #extinction led to wide scale changes in landscapes—including the shape of #rivers—and these changes are reflected in the geologic record... the sudden disappearance of dinosaurs allowed #forests to flourish, helping to trap sediment, build point bars and structure rivers."