Sanctuary and Smilodon

Just curious, does anybody know why I can’t put smilodon in the sanctuary?! Smilodon never spawns in my area (at least I don’t see one), so I don’t have any opportunity to upgrade my smilocephalosaurus :confused:

Cenozoics and birds can’t be placed in sacs sadly, but Ludia said that they are working on it, so that they can both be put in sancs soon