Whose eggs?

(Jurassic Park movie and Jurassic Park: The Game spoilers)

A new surprise contender enters the list of candidates for what dinosaur's eggs do Dr. Grant, Lex, and Tim find in Jurassic Park. Velociraptor? Gallimimus? There are arguments for both. But we don't see exactly how far from the tree they slept in they are when they stumble upon the nest, or how many fences they may have crossed along the way, i.e. what paddock they're in. Topps' comic adaptation of the movie takes a lot less ambiguous approach (my copy is in Finnish, but the dialogue is not much different from the movie's, and you can find an English version at the JP wiki):

The nest is under that very tree.

Given that the characters were just woken up by Brachiosaurus like in the movie, that would mean they're still in the Brachiosaurus enclosure. Is that whose eggs those are?

In the movie, probably not. Sauropod eggs were typically very spherical, and the ones in the movie are even more elongated than the shape people usually think of as "egg-shaped" (chicken egg, which, yes, is a theropod egg). The footprints that lead away from the eggs also look like they were left by bipedal animals, although the hatchlings' paths do overlap a lot so it's not completely clear. Even if they were left by quadrupeds or if some sauropods could walk on two feet as infants and transferred to obligate quadrupedality as they grew heavier, their footprints would not look like that - especially JP sauropods, which have very elephant-like feet.

In the comic? ...Maybe? The comic is an adaptation, and doesn't follow the movie 1:1, but it is official material, for what it's worth. Either the human characters are still in the Brachiosaurus enclosure, or the Brachiosaurus have broken out as well. And I suppose they could have, they're certainly big enough to smash unelectrified fences if a T. rex is, though with how they're portrayed as these harmless, gentle giants, maybe that's not the intended implication. The eggs do look a bit bigger than those in the movie, I think, and I did say the dialogue is mostly the same as in the movie, but Dr. Grant does specifically mention in one speech bubble that they're big. We also don't see the eggs in more than that one panel, and it's hard to tell their shape. They look rounder than the eggs seen in the movie. Also no view of footprints in the comic, and no footprints are actually even mentioned, so maybe the hatchlings left none. The eggs in the movie are on bare ground, here they're on vegetation.

So in the context of just this comic? Yeah, maybe they could be Brachiosaurus eggs!

But now I'm wondering, even if that's not whose eggs the ones in the movie are, could they still be in the Brachiosaurus enclosure? Though there is a slight timeskip and we don't see the characters climb down from the tree, their dialogue suggests the scene where the eggs are found is very soon after Lex got sneezed on by a veggiesaurus.

So in that case, whose eggs?

I guess a small theropod living in the Brachiosaurus enclosure. Could it have snuck in during an earlier power outage at some point without anyone noticing? Or maybe it was placed there deliberately, and just not included in park maps and such material that had been printed/recorded at the time, because its addition was new, and the park wasn't even open yet. It could even be a carnivore and that wouldn't necessarily be a dealbreaker, since the Brachiosaurus are too big for small predators to be a threat to them. Or maybe it was supposed to be housed with the big sauropods, but things didn't go as planned, and the theropods were removed from the enclosure, but not before they had laid eggs there.

And now the eggs have hatched. Like in the case if the eggs' parents were Velociraptors, there wouldn't have been anyone around to incubate them with their own body heat, which is my main reason to suspect they wouldn't be Velociraptor eggs. The JP Velociraptor's very social nature and that they imprint at hatching suggests the parents are supposed to be there when their offspring enter the world, and it would make sense then that they don't leave the eggs on their own for incubation, either, and so their natural incubation method would be brooding. But that doesn't have to be the case for other species, and there are examples among modern birds, too, of eggs incubating with a different heat source and hatching alone being the norm for a species.

Though the incubation method seems a mismatch, the footprints with two toes do look very raptorlike. So maybe they are raptors as in deinonychosaurs, just not Velociraptors. Does the park have any animals matching that description? Well... if you've looked at the media mentioned in the spoiler warning, you might guess what critter came to mind.

Though never mentioned in the movies, in Jurassic Park: The Game one of the animals planned to be included in the park was Troodon. They were never shown to guests, and John Hammon ordered them (and records of their creation, conveniently) to be destroyed, after learning that the animals that were cloned were not quite what they'd expected. Though fatally venomous bite and rather unappealing appearance were already enough points against their marketability, turns out the JP:TG Troodon's nesting involves paralyzing another animal with its venom, ripping its victim open, and laying eggs in its body cavity, to be kept warm by the still living victim's body heat.

Could that have been a Troodon nest? The animal with the questionable honor of warming their eggs they could have gotten from a feeding, the park seems to have no problem offering its carnivores live prey. So long as that poor thing stayed alive, the adult Troodons didn't need to stick around for their eggs to incubate. Where was the animal, then, when the eggs were found? If its removal from the nest was recent, and the hatching seemed to have been, since there were footprints after the rain the night before, the eggs could have stayed warm for long enough to be able to hatch. It wouldn't have left on its own feet, but some other animal could have taken it. The only other animals in the enclosure big enough to quickly remove the whole body (as opposed to maybe birds and such scavenging it, and they would likely have eaten the eggs, too) were herbivores, but modern herbivores do sometimes consume meat for protein to supplement their diet (meat is easier to digest than plants are, after all, obligate carnivores trying get nutrition out of plants doesn't work out nearly as well), and, well, maybe messing with the animals' metabolism for the purpose of the lysine contingency made a protein snack a welcome find for the Brachiosaurus. So not entirely veggiesaurs after all, and good thing they didn't realize Dr. Grant and the kids, too, were a potential source of protein. They wouldn't have picked out the eggs from the carcass, and those would have been good nutrition, too, but maybe what the humans found is what fell out when the carcass was picked up.

...Or not. Even if JP:TG is considered canon, and even if information given in it counts to retroactively apply to the first movie, which was made 18 years earlier, the eggs are way too big compared to the Troodon eggs seen in the game, and the wrong shape, too.

But, a fun thought.