All of this attempted reconstruction depends on the assumption that the platypus is not just an oddity of nature but a manuscript of genetic changes. Well, we shall see.
Talk about convergent evolution. And if the timing of the split is correct, 150 million years was the amount of time available, not half a billion years. … at least one species of tardigrade lights up as well. One wonders how exactly the individual species of tardigrade (water bear) began to do that. What was the time frame there?
Apparently, the platypus ended up inheriting the lot.