ALL ANSWERS · DINOSAURS · DAILY No. 27 · SEPTEMBER 30, 2026
Size It Up Dinosaurs answer: September 30
The five Dinosaurs silhouettes for September 30, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 27 ran from a hypsilophodon (2 m) to a brontosaurus (22 m). The widest gap was round 3, Giganotosaurus against Hypsilophodon, at 6.5×; the closest call was round 4, Baryonyx against Therizinosaurus, only 1.0× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
Lambeosaurus Lambeosaurus lambei vs Gallimimus Gallimimus bullatus
Gallimimus · reference · 6 m Lambeosaurus · true length · 9 m 1.5× longer than the gallimimus
Lambeosaurus is represented here by a selected estimated total length of 9 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 2
Polacanthus Polacanthus foxii vs Apatosaurus Apatosaurus louisae
Apatosaurus · reference · 21 m Polacanthus · true length · 5 m 4.2× shorter than the apatosaurus
Polacanthus is represented here by a selected estimated total length of 5 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 3
Giganotosaurus Giganotosaurus carolinii vs Hypsilophodon Hypsilophodon foxii
Hypsilophodon · reference · 2 m Giganotosaurus · true length · 13 m 6.5× longer than the hypsilophodon
Giganotosaurus is represented here by a selected estimated total length of 13 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 4
Baryonyx Baryonyx walkeri vs Therizinosaurus Therizinosaurus cheloniformis
Therizinosaurus · reference · 10 m Baryonyx · true length · 10 m 1.0× longer than the therizinosaurus
Baryonyx is represented here by a selected estimated total length of 10 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
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ROUND 5
Lufengosaurus Lufengosaurus vs Brontosaurus Brontosaurus excelsus
Brontosaurus · reference · 22 m Lufengosaurus · true length · 6 m 3.7× shorter than the brontosaurus
Lufengosaurus is represented here by a selected estimated total length of 6 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.