Bertsch and Pesta's work has been replicated. The dinosaur temperature estimate is close to estimates made by other techniques - the main interesting thing here is that this is a direct estimate made using the fossil remains rather than working off of metabolic knowledge, body size, and the like. So the dinosaur temperature estimate is in some sense the replication by another technique of strongly suspected results. The snail result is very new; I'm not aware of anything that replicates it.