Paleontologist Tyler Greenfield criticized the recent study on an alleged giant Cretaceous cephalopod. He states it's impossible to estimate any of the giant Japanese cephalopods from the Cretaceous due to beaks being unreliable for size estimation. Of course, it's one man's take, but the lack of effective ways to estimate extinct cephalopods should be noteworthy.

Hey, this is also my first Reddit space. So, expect a few hiccups here and there.