Original sentence: Recently, there is possible  evidence of a Dead Clade Walking: evidence was presented that pollen samples recovered near a fossilized hadrosaur femur recovered in the Ojo Alamo Sandstone at the San Juan River indicate that the animal lived in Tertiary times, approximately 64.5 million years ago or about 1 million years after the K-T event...The Cretaceous-Tertiary extinction event was the sudden extinction of a large percentage of extant animal species in a comparatively short period of time.With a few possible exceptions, there are no non-avian dinosaur fossils that are found later than the K-T boundary, and it appears that all went extinct during or shortly after the event
Edited sentence: Recently, evidence was presented that pollen samples recovered near a fossilized hadrosaur femur recovered in the Ojo Alamo Sandstone at the San Juan River indicate that the animal lived in Tertiary times, approximately 64.5 million years ago or about 1 million years after the K-T event.Recently, there is possible  evidence of a Dead Clade Walking: a genus of dinosaur that survived approximately 1 million years after the K-T event.The Cretaceous-Tertiary extinction was the rapid dying off of a large percentage of extant animal species in a comparatively short period of time.With a few controversial exceptions, there are no non-avian dinosaur fossils that are found later than the K-T boundary, and it appears that all went extinct during or shortly after the event