ALL ANSWERS · DINOSAURS · DAILY No. 4 · OCTOBER 28, 2026

Sizekin Dinosaurs answer: October 28

The five Dinosaurs silhouettes for October 28, 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 4 ran from Heterodontosaurus (1.2 m) to Carcharodontosaurus (12.5 m). The widest gap was round 2, Carcharodontosaurus against Oviraptor, at 6.3×; the closest call was round 3, Euoplocephalus against Australovenator, only 1.4× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Therizinosaurus vs Heterodontosaurus Heterodontosaurus tucki

    Heterodontosaurus
    Heterodontosaurus · reference · 1.2 m
    Therizinosaurus
    Therizinosaurus · true height · 5 m

    4.2× taller than Heterodontosaurus

    Approximate standing reconstruction height: 5 m, following the Western Australian Museum. Measured from the feet to the head; incomplete fossils make the reconstruction uncertain.

  2. ROUND 2

    Carcharodontosaurus Carcharodontosaurus vs Oviraptor Oviraptor philoceratops

    Oviraptor
    Oviraptor · reference · 2 m
    Carcharodontosaurus
    Carcharodontosaurus · true length · 12.5 m

    6.3× longer than Oviraptor

    Carcharodontosaurus is represented here by a selected estimated total length of 12.5 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.

  3. ROUND 3

    Euoplocephalus Euoplocephalus tutus vs Australovenator Australovenator wintonensis

    Australovenator
    Australovenator · reference · 5 m
    Euoplocephalus
    Euoplocephalus · true length · 7 m

    1.4× longer than Australovenator

    Euoplocephalus 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.

  4. ROUND 4

    Lambeosaurus Lambeosaurus lambei vs Alioramus Alioramus remotus

    Alioramus
    Alioramus · reference · 6 m
    Lambeosaurus
    Lambeosaurus · true length · 9 m

    1.5× longer than Alioramus

    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.

  5. ROUND 5

    Ceratosaurus Ceratosaurus nasicornis vs Iguanodon Iguanodon bernissartensis

    Iguanodon
    Iguanodon · reference · 10 m
    Ceratosaurus
    Ceratosaurus · true length · 7 m

    1.4× shorter than Iguanodon

    Ceratosaurus is represented here by a selected estimated total length of 7 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, Sizekin Unlimited draws fresh pairs from the whole library for as long as you like.

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