I didn’t see the word pluot, only Brontosaurus Egg. I thought I’d better take a couple or I might regret not trying them – they look like plums, the size of the black ones from California so often sold here.
It seems, however, that they are not half plum and half apricot, but more plum than apricot. The plumcot (Pflaumenkose) is older and not so well known. There are also apriums (Apraumen).