Historical clue formulations

• Jurassic creature whose name means "different lizard" — 2019-12-27
• Terror in Arthur Conan Doyle's "The Lost World" — 2018-03-30
• Reptile at the top of the Jurassic food chain — 2016-11-01
• Literally, "different lizard" — 2014-06-28
• Jurassic genus whose name means, literally, "different lizard" — 2002-06-15