Sauroposeidon
The press release in 1999 immediately garnered international media attention, which led to many (inaccurate) news reports of "the largest dinosaur ever!". While "Sauroposeidon" likely represents the tallest known dinosaur taxon, it does not hold records for either the longest or most massive. "Patagotitan" or "Argentinosaurus" make better candidates for the title "World's Largest Dinosaur" (presuming to ignore, as is conventional, "Amphicoelias"), though incomplete fossil evidence makes exact rankings impossible.
Titanoboa: Monster Snake
Titanoboa: Monster Snake is a 2012 documentary film produced by the Smithsonian Institution. The documentary treats "Titanoboa", the largest snake ever found. Fossils of the snake were uncovered from the Cerrejón Formation at Cerrejón, the tenth biggest coal mine in the world in the Cesar-Ranchería Basin of La Guajira, northern Colombia, covering an area larger than Washington, D.C. The documentary premiered at the Smithsonian Channel on April 1, 2012, followed by a panel discussion from the scientists who spearheaded the research: Carlos Jaramillo from the Smithsonian Tropical Research Institute, Jonathan Bloch from the Florida Museum of Natural History and Jason Head from the University of Nebraska at Lincoln.