If I get my Tardis working I may avoid going back that far... the animals would truly look scary as heck...
Haha, the author claims this animal is an early ancestor of the whale. I would like to inspect that family tree.
There's that term again: "macro-evolution".
I'd like to see it not-used, because it confuses the h*ll out of anti-evolutionists, makes them babble incoherently about frogs turning into birds.
In reality, there's only one evolution -- short-term "micro-evolution" changes, which when accumulated over very long times can lead people to speak of "macro-evolution".
But there was nothing "macro" about it.
It all happened one change at a time -- micro, adaption, with those changes accumulating over many millions of years.
Short-term evolution, long-term evolution: