DAILY NO. 3 · VERIFIED MEASUREMENTS
The five dinosaurs objects from the Size It Up puzzle on September 3, 2026, with the measured size of each, the reference it was compared against, a source you can check, and how the community's guesses landed. Want the surprise first? Replay this puzzle — archived days never touch your streak.
Answer: an Argentinosaurus measures 33 m (length / span), which is about 1.1× smaller than the reference, a Space Shuttle orbiter at 37.3 m.
Some estimates place this giant at more than 30 metres long.
Common miss: players tend to inflate an Argentinosaurus when it sits beside a Space Shuttle orbiter — big things get squeezed, small familiar things get stretched.
Answer: an Iguanodon measures 10 m (length / span), which is about 1.1× smaller than the reference, an American school bus at 10.7 m.
Its thumb spike was first reconstructed, wrongly, as a horn on the nose.
Common miss: players tend to inflate an Iguanodon when it sits beside an American school bus — big things get squeezed, small familiar things get stretched.
Answer: a Triceratops measures 9 m (length / span), which is almost exactly the same size as the reference, a Stegosaurus at 9 m.
The skull alone could reach 2.5 m, among the largest of any land animal.
Common miss: players tend to inflate a Triceratops when it sits beside a Stegosaurus — big things get squeezed, small familiar things get stretched.
Answer: a Stegosaurus measures 9 m (length / span), which is about 1.4× smaller than the reference, a Tyrannosaurus rex at 12.3 m.
A brain the size of a lime, in a body as long as a bus.
Common miss: players tend to inflate a Stegosaurus when it sits beside a Tyrannosaurus rex — big things get squeezed, small familiar things get stretched.
Answer: a Parasaurolophus measures 9.5 m (length / span), which is 1.1× as big as the reference, a Triceratops at 9 m.
The hollow head crest may have worked like a trumpet.
Common miss: players tend to compress a Parasaurolophus when it sits beside a Triceratops — big things get squeezed, small familiar things get stretched.
Sizes are measured along the axis named in each round and link to their published source. Explore the full library by category, or read how scoring works.