Cretaceous-Tertiary (K-T) extinction Cretaceous-Paleogene (K-Pg) K-T extinction K-T extinction Cretaceous-Tertiary or K-T extinction Encyclopædia Britannica Cretaceous-Tertiary or K-T extinction K–T extinction | Overview & Facts | Britannica.com url Estinzione di massa del Cretaceo-Paleocene K-T extinction K–T extinction | Overview & Facts | Britannica.com K-T extinction extinción en masa del Cretácico https://www.britannica.com/science/K-T-extinction see this lovely video from Britannica Cretaceous-Tertiary or K-T extinction K–T extinction | Overview & Facts | Britannica.com K–T extinction | Overview & Facts | Britannica.com Dostupné online Cretaceous–Paleogene extinction event Cretaceous-Paleogene (K-Pg) Dostupné online Estinzione di massa del Cretaceo-Paleocene K-T extinction K-T Cretaceous-Tertiary or K-T extinction mass extinction that killed the dinosaurs بانقراض العصر الطباشيري الثلاثي K–T extinction | Overview & Facts | Britannica.com Cretaceous-Tertiary or K-T extinction