Believe me, I'd love to explain. But the explanation requires a lot of writing at this end.

And in the past, just about every time I'd tried to give a science-based explanation for something relating to dinosaurs and other things prehistoric (including why the terms Apatosaurus and pterosaur are correct and Brontosaurus and pterodactyl aren't), the same minority of posters almost immediately jump in and ... well, I've learned my lesson. It's just not worth the time and effort.