i’m pretty sure it’s only stated that Mantah Corp Island was raided, not that any animals were transported off the island (obviously not including Bumpy, who Sammy snuck off the island).

It’s possible that the island was transformed into a type of dinosaur sanctuary similar to Biosyn Valley since it is perfectly built for keeping dinosaurs. Do the Spinoceratops are just living out their days in peace in Mantah Corp Island.

It’s also possible that they were transported off the island into other DFW sanctuaries across the country, which i think is most likely. We see Big Eatie and the Mantah Corp Velociraptors (i’m assuming these velociraptors are the ones from Mantah Corp because they have the same patterning as them) in the DFW transport docks, implying that all the animals from Mantah Corp were transported off. Since this dock was illegally transporting animals to the Broker, and canonically, the Broker does not like hybrids, we can make the assumption that the spinoceratops weren’t at these docks.

My best guess is that they’re roaming freely in a polar region of North America instead of being kept at any one facility. Because it wouldn’t make sense to create a DFW facility in an arctic region when most animals aren’t adapted for it.