original: Megalibgwilia is a genus of echidna known only from Australian fossils that incorporates the oldest known echidna species.
simplifications: Megalibgwilia is a genus of echidna found only in Australian fossils that incorporates the oldest known echidna species. Megalibgwilia is a genus of echidna found in Australian fossils and it is the oldest known echidna species. Megalibgwilia is a genus of echidna. It is known only from Australian fossils that incorporates the oldest known echidna species. Megalibgwilia is a genus of echidna seen in Australian fossils. It includes the oldest known echidna species. Megalibgwilia is a genus of echidna. It is only known from Australian fossils that have the oldest known echidna species. Megalibgwilia is a genus of echidna that is only known from fossils. Megalibgwilia is a type of echidna known only from Australian fossils that include the oldest known echidna species. Megalibgwilia is a genus of echidna known from Australian fossils. This genus includes the oldest known echidna species. Megalibgwilia is a group of echidna only found in Australian fossils that include the oldest echidna family. Megalibgwilia is a genus of echidna known from Australian fossils incorporating the oldest echidna species.