DAILY NO. 5 · VERIFIED MEASUREMENTS
The five dinosaurs objects from the Size It Up puzzle on September 5, 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: 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: a Velociraptor measures 2 m (length / span), which is 1.1× as big as the reference, a road bicycle at 1.8 m.
Real Velociraptors were closer to turkey-sized than movie monsters.
Common miss: players tend to compress a Velociraptor when it sits beside a road bicycle — big things get squeezed, small familiar things get stretched.
Answer: an Iguanodon measures 10 m (length / span), which is 1.1× as big as the reference, a Triceratops at 9 m.
Its thumb spike was first reconstructed, wrongly, as a horn on the nose.
Common miss: players tend to compress an Iguanodon when it sits beside a Triceratops — big things get squeezed, small familiar things get stretched.
Answer: a Stegosaurus measures 9 m (length / span), which is about 1.2× smaller than the reference, an American school bus at 10.7 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 an American school bus — big things get squeezed, small familiar things get stretched.
Answer: an Allosaurus measures 8.5 m (length / span), which is about 1.1× smaller than the reference, a Stegosaurus at 9 m.
The common large predator of its day: far more Allosaurus fossils exist than T. rex ones.
Common miss: players tend to inflate an Allosaurus when it sits beside a Stegosaurus — 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.