Size It Up

ALL ANSWERS · DINOSAURS · DAILY No. 6 · SEPTEMBER 9, 2026

Size It Up Dinosaurs answer: September 9

The five Dinosaurs silhouettes for September 9, 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 6 ran from a leaellynasaura (2 m) to a torvosaurus (10 m). The widest gap was round 5, Leaellynasaura against Eotyrannus, at 2.5×; the closest call was round 3, Camptosaurus against Styracosaurus, only 1.1× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Zuniceratops Zuniceratops christopheri vs Ouranosaurus Ouranosaurus nigeriensis

    Ouranosaurus · reference · 7 m
    Zuniceratops · true length · 3.5 m

    2.0× shorter than the ouranosaurus

    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.

  2. ROUND 2

    Maiasaura Maiasaura peeblesorum vs Carnotaurus Carnotaurus sastrei

    Carnotaurus · reference · 8 m
    Maiasaura · true length · 9 m

    1.1× longer than the carnotaurus

    Maiasaura is represented here by a selected estimated total length of 9 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.

  3. ROUND 3

    Camptosaurus Camptosaurus dispar vs Styracosaurus Styracosaurus albertensis

    Styracosaurus · reference · 5.5 m
    Camptosaurus · true length · 5 m

    1.1× shorter than the styracosaurus

    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.

  4. ROUND 4

    Torvosaurus Torvosaurus tanneri vs Kentrosaurus Kentrosaurus aethiopicus

    Kentrosaurus · reference · 5 m
    Torvosaurus · true length · 10 m

    2.0× longer than the kentrosaurus

    Torvosaurus is represented here by a selected estimated total length of 10 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.

  5. ROUND 5

    Leaellynasaura Leaellynasaura amicagraphica vs Eotyrannus Eotyrannus lengi

    Eotyrannus · reference · 5 m
    Leaellynasaura · true length · 2 m

    2.5× shorter than the eotyrannus

    Leaellynasaura 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.

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