Megalodon not as big as we once thought!

[GuateGojira]

(09-15-2020, 08:51 PM)BorneanTiger Wrote: Though they are different, the teeth of the great white look more similar to those of C. / O. subauriculatus (chubutensis) than to those of this shortfin mako (Isurus oxyrinchus), and the teeth of the latter look more similar to those of a number of megatooths shown here, even though both the great white and mako are mackerel sharks (order Lamniformes), and the others are megatooths which are supposed to be in the same genus as Megalodon, and consensuses change over time, like about how ape-like or human-like Lucy the australopithecine was.

That is oversimplification, is like to say that a puma is related to the tiger jus for been "cats". Sharks are not that simple, and the while superficially the tooth of the megalodon looks like the one of the white shark, they had important differences in the form and function, in fact it seems that the white shark ancestors player a role in the extinction of the megalodon. Definitelly they do not belong to the same species and when you see something that "likes like", you most take in count the convergent evolution too. Under your understanding, Cretaxirina is also related with the white shark just because they had afinities, but it is not. There were several species of mega-toother sharks and the white shark is not one of them. Reply