We can conclude that Eulipotyphla appeared abruptly in the Paleocene about 66-61.7 million years ago.
Molecular biologist Dan Graur mentioned his weird idea that guinea pigs are not rodents at a lecture at my university in Tübingen when I was still a student.
Even as a paleontologist I admit that calling this a real scientific discipline seems like an insult to sciences like physics or chemistry or molecular biology.
So, is every thing OK with Darwinism after all? No so fast. Actually, there are some problems that do not square well with a Darwinian scenario.
Primates not only appeared suddenly, but their different subgroups of lemurs, tarsier, and simians all appeared at about the same time.