Giganotosaurus Was Bigger Than T. Rex, but Still in Its Shadow

Meet Sarcosuchus, the 10-Ton SuperCroc

Giganotosaurus and Mapusaurus were closely related carcharodontosaurid theropods from the early part of the Late Cretaceous of what is now Argentina. Giganotosaurus is known from the Candeleros Formation, dated to the early Cenomanian, roughly 99.6 to 97 million years ago, and is often estimated at about 12 to 13 meters long (39 to 43 feet). Mapusaurus is known from the Huincul Formation, commonly dated to the Cenomanian to early Turonian, roughly 97 to 92 million years ago, and is generally con

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