ALL ANSWERS · DINOSAURS · DAILY No. 54 · OCTOBER 27, 2026
Size It Up Dinosaurs answer: October 27
The five Dinosaurs silhouettes for October 27, 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 54 ran from a beipiaosaurus (2 m) to an acrocanthosaurus (12 m). The widest gap was round 1, Beipiaosaurus against Acrocanthosaurus, at 6.0×; the closest call was round 3, Avaceratops against Erlikosaurus, only 1.5× 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
Beipiaosaurus Beipiaosaurus inexpectus vs Acrocanthosaurus Acrocanthosaurus atokensis
Acrocanthosaurus · reference · 12 m Beipiaosaurus · true length · 2 m 6.0× shorter than the acrocanthosaurus
Beipiaosaurus is represented here by a selected estimated total length of 2 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 2
Dryosaurus Dryosaurus altus vs Baryonyx Baryonyx walkeri
Baryonyx · reference · 10 m Dryosaurus · true length · 4 m 2.5× shorter than the baryonyx
Dryosaurus is represented here by a selected estimated total length of 4 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 3
Avaceratops Avaceratops lammersi vs Erlikosaurus Erlikosaurus andrewsi
Erlikosaurus · reference · 3.4 m Avaceratops · true length · 2.3 m 1.5× shorter than the erlikosaurus
Avaceratops is represented here by a selected estimated total length of 2.3 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 4
Zuniceratops Zuniceratops christopheri vs Daspletosaurus Daspletosaurus degrootorum
Daspletosaurus · reference · 9 m Zuniceratops · true length · 3.5 m 2.6× shorter than the daspletosaurus
Zuniceratops is represented here by a selected estimated total length of 3.5 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 5
Deinonychus Deinonychus antirrhopus vs Ouranosaurus Ouranosaurus nigeriensis
Ouranosaurus · reference · 7 m Deinonychus · true length · 3.4 m 2.1× shorter than the ouranosaurus
Deinonychus is represented here by a selected estimated total length of 3.4 m. Dinosaur reconstructions vary; this is the source value 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.