BrainSnail

Subject

Dinosaurs & Prehistoric Life

Tyrannosaurus to trilobites, mammoths to molecular palaeontology - the whole story of ancient life and how we dug it up, one tiny step at a time.

This track covers deep time properly: not just dinosaurs, but the origin of animals, life moving onto land, the great extinctions, the age of mammals and the ice ages, alongside how palaeontologists actually work out what they claim.

A running theme is the difference between what fossils show and what gets reconstructed around them. Some of what people think they know about dinosaurs comes from confident guesses that later evidence overturned, and the track is clear about which parts are solid.

Palaeontology is a working demonstration of how much can be reconstructed from very little, and it is the clearest case study in science of conclusions being revised as evidence arrives.

Units
18
Steps
328
Questions
1,955

Who this track is for

Engaging from primary level, with the palaeontology method and evolution units suited to secondary and beyond.

How to approach it

  • Keep the periods straight - many famous dinosaurs never coexisted
  • Pay attention to how confident the evidence actually allows us to be
  • Birds are dinosaurs, and holding onto that clarifies a lot
Study guide · 8 min readHow to Learn About DinosaursPalaeontology is the best available lesson in reasoning from incomplete evidence. A guide to the definition that fixes half the misconceptions, why deep time is the hard part, and how to tell established from provisional.

What you will be able to do

  • Say what makes an animal a dinosaur and name several famous ones that are not
  • Explain how a fossil forms and why the record is so incomplete
  • Say why birds are dinosaurs in a technical rather than poetic sense
  • Describe the evidence for the end-Cretaceous impact

The thing people get wrong

That all the dinosaurs lived at the same time. The Mesozoic ran for roughly 180 million years, and Stegosaurus was as distant from Tyrannosaurus as Tyrannosaurus is from us.

If you only do 3 units

The definition, the timeline and the punchline. Those three fix nearly every misconception people carry about the subject.

  1. What Is a Dinosaur?
  2. The Age of Dinosaurs
  3. Dinosaurs and Birds

What the questions look like

8 real questions from across the Dinosaurs & Prehistoric Life track, easiest first, each with the answer and the reason behind it. Every unit page below has thirty more.

  • Choose all that applyLevel 1

    1. Which of these were NOT dinosaurs? Pick all that apply.

    • Pterosaurscorrect
    • Plesiosaurscorrect
    • Mammothscorrect
    • Tyrannosaurus

    Pterosaurs, plesiosaurs and mammoths all lived alongside or after dinosaurs but were different animals.

  • Match the pairsLevel 1

    2. Match each dinosaur to the body part it is famous for.

    Answer: Stegosaurus = Plates along the back; Triceratops = Three horns; Tyrannosaurus = Huge jaws and tiny arms; Brachiosaurus = A very long neck

    Each of these dinosaurs is recognised by one striking feature.

  • Choose all that applyLevel 1

    3. Which were real dinosaur defences? Pick all that apply.

    • Hornscorrect
    • Bony armourcorrect
    • Spiked or clubbed tailscorrect
    • Fire breathing

    Horns, armour plates and tail weapons all evolved for defence.

  • Fact or fibLevel 1

    4. Removing rock from a fossil can take longer than digging it up.

    Answer: True

    True. Preparation can take thousands of hours.

  • Multiple choiceLevel 1

    5. About how old is the Earth?

    • About 4.5 billion yearscorrect
    • About 6000 years
    • About 66 million years
    • About 1 million years

    Earth formed about 4.5 billion years ago.

  • Multiple choiceLevel 1

    6. Compared with the adult, how big were even the largest dinosaur eggs?

    • Very small compared with the adultcorrect
    • Bigger than the adult
    • The same size as the adult
    • About half the adult's size

    Even the biggest eggs were small next to a full-grown sauropod, because shells cannot be too thick.

  • True or falseLevel 1

    7. Ichthyosaurs died out well before the dinosaurs did.

    Answer: True

    True. They disappeared around ninety million years ago.

  • Fact or fibLevel 2

    8. The impact set off huge waves and fires as well as darkness.

    Answer: True

    True. Tsunamis, wildfires and earthquakes followed the strike.

Units in Dinosaurs & Prehistoric Life

Listed in the order they are meant to be worked through.

  1. What Is a Dinosaur?What dinosaurs were, when they lived and how we name them19 steps · 113 questions
  2. Famous DinosaursTyrannosaurus, Triceratops, Stegosaurus and the other stars19 steps · 111 questions
  3. Meat Eaters and Plant EatersTeeth, claws, defences and what dinosaurs ate18 steps · 108 questions
  4. Fossils and Fossil HuntingWhat fossils are, how they form and how they are found18 steps · 109 questions
  5. The Age of DinosaursTriassic, Jurassic and Cretaceous, and how deep time works18 steps · 110 questions
  6. Eggs, Nests and Growing UpDinosaur eggs, nests, babies and family life18 steps · 108 questions
  7. Flying and Swimming ReptilesPterosaurs, plesiosaurs and the sea monsters that were not dinosaurs19 steps · 111 questions
  8. The Great ExtinctionThe asteroid, the volcanoes and who survived18 steps · 109 questions
  9. Dinosaurs and BirdsFeathers, Archaeopteryx and the dinosaurs still alive today18 steps · 107 questions
  10. Life Before the DinosaursFrom the first cells to trilobites, fish and the Great Dying19 steps · 112 questions
  11. After the Dinosaurs: Ice Age GiantsMammoths, sabre-tooths and the world of the ice ages18 steps · 110 questions
  12. Dinosaur Family GroupsHow dinosaurs are sorted into the great branches18 steps · 107 questions
  13. How Palaeontology WorksDigging, preparing, dating and reconstructing a fossil18 steps · 107 questions
  14. Reading the EvidenceTracks, dung, bonebeds and everything that happens after death18 steps · 106 questions
  15. Dinosaur BiologyBone histology, breathing, temperature, senses and movement18 steps · 105 questions
  16. Prehistoric Worlds and ClimatesMoving continents, ancient climates and vanished landscapes18 steps · 107 questions
  17. Classification and CladisticsClades, cladograms and how species get their names18 steps · 107 questions
  18. Frontiers of PalaeontologyMolecules, isotopes, scanning, colour and the open questions18 steps · 108 questions

Practise Dinosaurs & Prehistoric Life

1,955 questions, in tiny sessions you can finish in a few minutes.

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Where these questions come from. Each unit starts as a plan of the concepts it should cover and the difficulty it should span. Questions are written against that plan with AI assistance, then checked by a validator that rejects anything without a single defensible answer, an explanation, or plausible wrong options. How we write questions sets out the whole process, and corrections are fixed in the bank and reach the site and the app the same day.