"Lower Tremp Formation"@en . . . . . "The Lower Tremp Formation is a geological formation in Lerida, Spain whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation."@en . . . "Lower Tremp Formation"@en . . "The Lower Tremp Formation is a geological formation in Lerida, Spain whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation."@en . . . .