ALL ANSWERS · DINOSAURS · DAILY No. 38 · OCTOBER 11, 2026
Size It Up Dinosaurs answer: October 11
The five Dinosaurs silhouettes for October 11, 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 38 ran from an anchisaurus (2 m) to an iguanodon (10 m). The widest gap was round 3, Anchisaurus against Australovenator, at 2.5×; the closest call was round 4, Triceratops against Lambeosaurus, 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
Dilophosaurus Dilophosaurus wetherilli vs Gallimimus Gallimimus bullatus
Gallimimus · reference · 6 m Dilophosaurus · true length · 7 m 1.2× longer than the gallimimus
Dilophosaurus is represented here by a selected estimated total length of 7 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
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ROUND 2
Iguanodon Iguanodon bernissartensis vs Chasmosaurus Chasmosaurus belli
Chasmosaurus · reference · 5 m Iguanodon · true length · 10 m 2.0× longer than the chasmosaurus
Iguanodon 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 3
Anchisaurus Anchisaurus polyzelus vs Australovenator Australovenator wintonensis
Australovenator · reference · 5 m Anchisaurus · true length · 2 m 2.5× shorter than the australovenator
Anchisaurus is represented here by a selected estimated total length of 2 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 4
Triceratops Triceratops horridus vs Lambeosaurus Lambeosaurus lambei
Lambeosaurus · reference · 9 m Triceratops · true length · 9 m 1.0× longer than the lambeosaurus
Triceratops is represented here by a selected estimated total length of 9 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
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ROUND 5
Oviraptor Oviraptor philoceratops vs Deinonychus Deinonychus antirrhopus
Deinonychus · reference · 3.4 m Oviraptor · true length · 2 m 1.7× shorter than the deinonychus
Oviraptor is represented here by a selected estimated total length of 2 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.