Which of the following is not a third conditional?

If dodos had survived, they would have been the second-largest flightless bird.

If dinosaurs had died out from a disease, would we have been able to find out from fossils?

If I could go back in time, I would go back millions of years to see dinosaurs.

If woolly mammoths hadn’t died out, they would have lived in Northern Europe today.

If the fossil had been discovered here, the scientists might have named it after the town.