Which animal was/is larger

Which animal was/is larger, the brontosaurus dinosaur or the blue whale?

A blue whale is bigger than a brontosaurus was.

"The blue whale is the largest creature that has ever existed on earth. It is bigger than 25 elephants; bigger than a Brontosaurus and a Tyrannosaurus rex combined."
--http://www.animalinfo.org/species/cetace…

brontosaurus dinosaur: " It was one of the largest land animals that ever existed, with an average length of 23 m (75 ft) and a mass of at least 23 metric tons (25 short tons)."
blue whale: " At perhaps over 33 metres (108 ft) in length and 180 metric tons (200 short tons)[4] or more in weight, it is the largest animal ever known to have existed.[5]"
blue whale > brontosaurus dinosaur

According to my perspective, the blue whale is larger.

The blue whale is considered to be the largest animal, ever.

Blue whale, by far.

blue whale