ALL ANSWERS · DINOSAURS · DAILY No. 43 · OCTOBER 16, 2026
Size It Up Dinosaurs answer: October 16
The five Dinosaurs silhouettes for October 16, 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 43 ran from a psittacosaurus (2 m) to a diplodocus (26 m). The widest gap was round 3, Huayangosaurus against Diplodocus, at 5.8×; the closest call was round 1, Chasmosaurus against Styracosaurus, only 1.1× 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
Chasmosaurus Chasmosaurus belli vs Styracosaurus Styracosaurus albertensis
Styracosaurus · reference · 5.5 m Chasmosaurus · true length · 5 m 1.1× shorter than the styracosaurus
Chasmosaurus 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
Lambeosaurus Lambeosaurus lambei vs Psittacosaurus Psittacosaurus mongoliensis
Psittacosaurus · reference · 2 m Lambeosaurus · true length · 9 m 4.5× longer than the psittacosaurus
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 3
Huayangosaurus Huayangosaurus taibaii vs Diplodocus Diplodocus carnegii
Diplodocus · reference · 26 m Huayangosaurus · true length · 4.5 m 5.8× shorter than the diplodocus
Huayangosaurus is represented here by a selected estimated total length of 4.5 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 4
Deinocheirus Deinocheirus mirificus vs Abelisaurus Abelisaurus comahuensis
Abelisaurus · reference · 9 m Deinocheirus · true length · 10 m 1.1× longer than the abelisaurus
Deinocheirus is represented here by a selected estimated total length of 10 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 5
Lufengosaurus Lufengosaurus vs Hypsilophodon Hypsilophodon foxii
Hypsilophodon · reference · 2 m Lufengosaurus · true length · 6 m 3.0× longer than the hypsilophodon
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.