ALL ANSWERS · DINOSAURS · DAILY No. 53 · OCTOBER 26, 2026
Size It Up Dinosaurs answer: October 26
The five Dinosaurs silhouettes for October 26, 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 53 ran from a yinlong (1.2 m) to a mamenchisaurus (22 m). The widest gap was round 2, Massospondylus against Brontosaurus, at 5.5×; the closest call was round 3, Yinlong against Scutellosaurus, 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
Australovenator Australovenator wintonensis vs Mamenchisaurus Mamenchisaurus hochuanensis
Mamenchisaurus · reference · 22 m Australovenator · true length · 5 m 4.4× shorter than the mamenchisaurus
Australovenator 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 2
Massospondylus Massospondylus carinatus vs Brontosaurus Brontosaurus excelsus
Brontosaurus · reference · 22 m Massospondylus · true length · 4 m 5.5× shorter than the brontosaurus
Massospondylus 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
Yinlong Yinlong downsi vs Scutellosaurus Scutellosaurus lawleri
Scutellosaurus · reference · 1.2 m Yinlong · true length · 1.2 m 1.0× longer than the scutellosaurus
Yinlong is represented here by a selected estimated total length of 1.2 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 4
Tenontosaurus Tenontosaurus tilletti vs Nigersaurus Nigersaurus taqueti
Nigersaurus · reference · 15 m Tenontosaurus · true length · 7 m 2.1× shorter than the nigersaurus
Tenontosaurus is represented here by a selected estimated total length of 7 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 5
Camptosaurus Camptosaurus dispar vs Albertosaurus Albertosaurus sarcophagus
Albertosaurus · reference · 9 m Camptosaurus · true length · 5 m 1.8× shorter than the albertosaurus
Camptosaurus is represented here by a selected estimated total length of 5 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.