Definition: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Input: From the Middle Jurassic of Argentina , it was one of the earliest large South American theropods .
Output:
It was among the earliest large South American theropods , having been found in Middle Jurassic strata of the Can ̃ ado ́ n Asfalto Formation in the Can ̃ ado ́ n Asfalto Basin of Argentina .