[dinosaur] Paleocene non-avian dinosaurs a reality

Good day,




if I understand it correctly, given the fantastic finds in Tanis locality, 
we can now assume that non-avian dinosaurs were still living at the time of 
Chicxulub impact and hence there were definitely paleocene dinosaurs. Their 
demise was relatively fast, but still there were surely living non-avian 
dinosaur in the days, weeks and perhaps months or years after the impact. So
"paleocene (non-avian) dinosaurs" is now a proven fact, isn´t it? Thank you 
for your thoughts, Tom