DAILY NO. 16 · VERIFIED MEASUREMENTS
The five dinosaurs objects from the Size It Up puzzle on October 7, 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.
The October 7, 2026 puzzle ran from a Parasaurolophus at 9.5 m to a Diplodocus at 25 m — about 3× apart, drawing on dinosaurs. The pair furthest apart was round 5: a Brachiosaurus is 1.5× as big as a Spinosaurus.
Answer: Parasaurolophus — 9.5 m. A Parasaurolophus measures 9.5 m (length / span), which is about 1.1× smaller than the reference, an American school bus at 10.7 m.
The hollow head crest may have worked like a trumpet.
Common miss: players tend to inflate a Parasaurolophus when it sits beside an American school bus — big things get squeezed, small familiar things get stretched.
Answer: Spinosaurus — 15 m. A Spinosaurus measures 15 m (length / span), which is 1.2× as big as the reference, a Tyrannosaurus rex at 12.3 m.
The longest predatory dinosaur known, and probably one that spent much of its life in water.
Common miss: players tend to compress a Spinosaurus when it sits beside a Tyrannosaurus rex — big things get squeezed, small familiar things get stretched.
Answer: Tyrannosaurus rex — 12.3 m. A Tyrannosaurus rex measures 12.3 m (length / span), which is 1.4× as big as the reference, a Stegosaurus at 9 m.
A large T. rex reached around 12.3 metres long.
Common miss: players tend to compress a Tyrannosaurus rex when it sits beside a Stegosaurus — big things get squeezed, small familiar things get stretched.
Answer: Diplodocus — 25 m. A Diplodocus measures 25 m (length / span), which is almost exactly the same size as the reference, a blue whale at 25 m.
Almost half of Diplodocus was tail, which may have cracked like a whip.
Common miss: players tend to inflate a Diplodocus when it sits beside a blue whale — big things get squeezed, small familiar things get stretched.
Answer: Brachiosaurus — 22 m. A Brachiosaurus measures 22 m (length / span), which is 1.5× as big as the reference, a Spinosaurus at 15 m.
Brachiosaurus held its neck upward, making it far taller than long-tailed sauropods of similar length.
Common miss: players tend to compress a Brachiosaurus when it sits beside a Spinosaurus — 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.