Now, for the Cenozoic, there are only the Paleogene (Paleocene-Oligocene) and Neogene (Miocene-Recent). Thus, there is no more K/T boundary -- there is only the K/P boundary.
I thought "P" was for "Permian". Wouldn't it be the K/Pg boundary? (Or why not just the M/C boundary?) -- T. Michael Keesey The Dinosauricon: http://dino.lm.com Parry & Carney: http://parryandcarney.com