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by vilhelm_s 2441 days ago
In addition to the Schmidt/Frank paper (already linked to by namirez in another comment), there's a cute suggestion that the best place to look for dinosaur civ remnants should be on the moon, Mars, and the asteroids, because their spacecrafts should decay less quickly than their Earth settlements. :)

https://arxiv.org/pdf/1704.07263.pdf