[dangus]

Hardly explains Darwin’s dilemma, unless I’m misunderstanding the article. Darwin would never have been surprised to find a lack of protist fossils; it was that so many lines of metazoa seemed to emerge at once.

[muawiyah]

Just like someone dumping his aquarium full of Atlantic basin creepy crawlies into a pristine, formerly iced over (pre-GW) lake in British Columbia.

All at once you got "some stuff".

This is all still crying out of an explanation ~