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.
Dakotaraptor
"Dakotaraptor" is exceptionally large for a dromaeosaurid; it has an estimated adult length of . This approaches the size of the largest known dromaeosaurid, "Utahraptor". "Dakotaraptor" however, does not have the proportions and adaptations of "Utahraptor", but more closely resembles smaller dromaeosaurids like "Deinonychus".