Paleontology
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50 free Paleontology trivia questions with answers — science & nature quiz, new questions added Oct 2026.
Paleontology is detective work on a planetary scale. From a single tooth, a set of tracks or a thin band of clay, scientists rebuild animals nobody has ever seen alive and work out when they lived, what they ate and why they vanished. This quiz covers the whole field: celebrated dinosaurs and the sea and sky reptiles that lived beside them, the ages of deep time, mass extinctions, famous fossil sites, and the collectors, rivals and hoaxers behind the big discoveries. Every answer comes with a short explanation, so you pick up the story as you play. It starts gently and gets harder, which makes it a good fit for dinosaur fans, students revising Earth history, and quiz hosts who need a dependable science round.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which US president, who named the fossil ground sloth Megalonyx, hoped Lewis and Clark would find living mastodons?
Thomas Jefferson
Thomas Jefferson first took the giant-clawed Megalonyx for an enormous lion-like cat when he studied its bones in the 1790s. One species of the sloth now carries his name.
Q 02Which Ice Age giant survived on Wrangel Island until about 4,000 years ago, after Egypt's Great Pyramid was built?
Woolly mammoth
The woolly mammoth held on at Wrangel Island, in the Arctic Ocean, until around 2000 BCE. Those last animals were smaller than mainland herds but not true island dwarfs.
Q 03Which dinosaur's tail spikes are called a thagomizer, a name invented as a joke in a Far Side cartoon?
Stegosaurus
Stegosaurus carried four tail spikes, and cartoonist Gary Larson gave them a name in a 1982 strip. Scientists liked the joke enough that the word crept into real research.
Q 04Which fossil hunter from Lyme Regis helped unearth the first correctly identified ichthyosaur skeleton at age twelve?
Mary Anning
Mary Anning made her living selling fossils from the Dorset cliffs, and a king of Saxony bought an ichthyosaur skeleton from her shop in 1844.
Q 05Which fish, thought to have died out with the dinosaurs, turned up alive in a fisherman's catch off South Africa?
Coelacanth
The coelacanth was known only from fossils until museum curator Marjorie Courtenay-Latimer spotted one in a 1938 catch. Its genus, Latimeria, is named after her.
Q 06Which giant extinct shark left behind fossil teeth over 18 centimetres long but almost no skeleton?
Megalodon
Megalodon had a skeleton of cartilage rather than bone, so it rarely fossilized. Its size has to be estimated from teeth and a few vertebrae.
Q 07Which group of long-necked marine reptiles is the Loch Ness Monster popularly imagined to be a surviving member of?
Plesiosaurs
Plesiosaurs could not have raised their heads swan-style above the water the way the monster is drawn, because their neck bones would not bend that far.
Q 08Which US city surrounds the La Brea Tar Pits, where dire wolves and saber-toothed cats were trapped in asphalt?
Los Angeles
Los Angeles grew up around the pits, and in 2006 crews digging a parking garage for the county art museum next door struck 16 new fossil deposits.
Q 09Which famous dinosaur name was dismissed for most of the 20th century as a mere synonym of Apatosaurus?
Brontosaurus
Brontosaurus, meaning thunder lizard, was folded into Apatosaurus in 1903 because that name had been published first. A 2015 study argued the two are distinct after all, though not everyone agrees.
Q 10The word fossil comes from the Latin fossilis, which carries which literal meaning?
Dug up
Dug up is the literal sense, and in the 1600s a fossil was anything taken from the ground, coal and salt included. The meaning narrowed to ancient plant and animal remains in the 1730s.
Q 11Which golden gemstone, traded from the Baltic coast since Roman times, can hold insects trapped millions of years ago?
Amber
Amber is fossilized tree resin, and it has trapped far more than insects: spider webs, frogs, flowers and feathers have all turned up inside.
Q 12Which radioactive isotope cannot date dinosaur bones because it only works on remains up to about 50,000 years old?
Carbon-14
Carbon-14 has a half-life of about 5,730 years, so too little is left to measure after roughly 50,000. Rocks from the age of dinosaurs are dated with far slower-decaying elements.
Q 13In which African country was Lucy, an Australopithecus skeleton named after a Beatles song, discovered?
Ethiopia
Q 21Which Philadelphia fossil hunter fought the Bone Wars against Yale's Othniel Charles Marsh until both men were ruined?
Edward Drinker Cope
Edward Drinker Cope once put the head of the long-necked Elasmosaurus on the tip of its tail, then tried to buy up every copy of the journal that printed his mistake.
Q 22Which Tyrannosaurus rex skeleton, named after the collector who found it in South Dakota, is in Chicago's Field Museum?
Sue
Sue is named after Sue Hendrickson, who went to look at some unexplored cliffs while the rest of her crew drove into town to repair a truck.
Q 23Which rare metal in a worldwide layer of clay led the Alvarez team to blame an asteroid for killing the dinosaurs?
Iridium
Ethiopia's Hadar site gave up about 40% of her skeleton, some 3.2 million years old. The team chose the name that night while a Beatles tape played over and over in camp.
Q 14Which feathered fossil from Bavaria's Solnhofen limestone, with teeth and a long bony tail, links dinosaurs to birds?
Archaeopteryx
Archaeopteryx looked so much like a small dinosaur that one specimen was first filed as Compsognathus by the collector who owned it.
Q 15The Chicxulub crater, left by the asteroid blamed for wiping out the dinosaurs, lies buried beneath which peninsula?
Yucatán
The Yucatán crater stayed hidden until geophysicists hunting for oil mapped it in the late 1970s. Their employer, Mexico's state oil company, first put the buried ring down to volcanic activity.
Q 16Which naturalist unearthed giant ground sloth fossils in South America years before he proposed natural selection?
Charles Darwin
Charles Darwin shipped the bones home from the Beagle voyage, and they were shown to Britain's leading scientists before he got back, making his reputation while he was still at sea.
Q 17Which English anatomist coined the word Dinosauria and drove the founding of London's Natural History Museum?
Richard Owen
Richard Owen built the name from the Greek for terrible lizard, though he meant terrible in the sense of fearfully great rather than frightening.
Q 18Which extinct sea creatures thrived for about 270 million years before vanishing in the end-Permian mass extinction?
Trilobites
Trilobites saw the world through lenses of clear calcite crystal, a feature of even the earliest species. Only a handful of kinds were left when the last ones died out.
Q 19Which dinosaur, shown as human-sized in the Jurassic Park films, was really about the size of a turkey?
Velociraptor
Velociraptor was also feathered: a row of quill knobs on one fossil forearm bone shows where large wing-like feathers were anchored.
Q 20Which geological era, bracketed by two mass extinctions, is commonly known as the Age of the Dinosaurs?
Mesozoic
The Mesozoic literally means middle life: it is the second of the three eras since complex animals evolved, and a hot greenhouse climate lasted through most of it.
Iridium turned up at hundreds of times its normal level in that layer, a clue spotted in 1980 by a Nobel-winning physicist working with his geologist son.
Q 24What name did geologist William Buckland coin for the fossilized dung that reveals what ancient animals ate?
Coprolites
Coprolites were taken for odd stones until Buckland studied them, and he suspected some were stained black by ink from swallowed belemnites.
Q 25In which country did fossil hunters in the 1990s find the first non-bird dinosaur known to have had feathers?
China
China's Sinosauropteryx wore a coat of simple filaments, and preserved pigment structures show its tail was banded in light and dark.
Q 26In which desert did Roy Chapman Andrews's 1920s expeditions find the first known nests of dinosaur eggs?
Gobi
The Gobi nests lay at a site Andrews named the Flaming Cliffs, and for seven decades the eggs were credited to the wrong dinosaur.
Q 27Which group of two-legged dinosaurs includes both Tyrannosaurus and, through their descendants, every living bird?
Theropods
Theropods range from giants like Giganotosaurus down to the bee hummingbird, which at under two grams is the smallest living dinosaur.
Q 28Which geological period is famous for an explosion in which most major animal groups first appear in the fossil record?
Cambrian
The Cambrian burst of new body plans took between 13 and 25 million years, so it was sudden only by geological standards.
Q 29Which US state is home to Petrified Forest National Park, where Triassic logs turned to solid stone?
Arizona
Arizona's logs were buried under sediment full of volcanic ash, and groundwater carried dissolved silica into the wood, where quartz crystals slowly replaced it.
Q 30Which French naturalist, called the founding father of paleontology, convinced science that species can go extinct?
Georges Cuvier
Georges Cuvier showed that elephant-like bones from North America belonged to a vanished animal, which he later named the mastodon.