Triassic Trivia
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48 free Triassic trivia questions with answers — science & nature quiz, new questions added Oct 2026.
Triassic trivia for dinosaur kids who grew up, geology students, and anyone who has stood among the petrified logs of Arizona or the moon-valley badlands of Argentina. The Triassic is the odd one out of the Mesozoic: it began in the wreckage of the worst extinction in Earth's history and ended with another, and for most of its 50 million years the dinosaurs were bit players while crocodile-line reptiles and tusked, beaked dicynodonts ran the show. The quiz covers how the period got its name from three German rock layers, the supercontinent Pangaea and its megamonsoons, the coal gap and the hottest climate of the Phanerozoic, then the animals: Lystrosaurus that made up 95 percent of some faunas, the giraffe-necked Tanystropheus, the first turtles, frogs, mammals, pterosaurs and ichthyosaurs, and the earliest dinosaurs from Ischigualasto, Ghost Ranch and Germany. It closes with the Central Atlantic volcanoes, the Manicouagan crater and the extinction that finally handed the world to the dinosaurs. Questions run from easy to expert, and every answer was checked against a reference page and carries its source. See also our dinosaurs, Jurassic, fossils and geology quizzes.
30 of 48 questions with answers and explanations. Play the quiz
Q 01The Triassic is the first period of which geological era?
Mesozoic
Mesozoic means 'middle life', a name coined in 1840 for the fossils lying between ancient and recent forms; mass extinctions mark both its start and its end.
Q 02Which period came immediately after the Triassic?
Jurassic
Jurassic: the extinction that closed the Triassic removed most of the big crocodile-line reptiles, and dinosaurs took over the land in the period that followed.
Q 03How long did the Triassic last?
50 million years
50 million years makes it the shortest of the three periods of the dinosaur era, yet dinosaurs never dominated it: their reign came afterwards.
Q 04The name Triassic refers to a 'triad' of what?
German rock layers
German rock layers: the three had been treated as separate formations until 1834, when a saltworks inspector argued from their fossils that they recorded a single span of time.
Q 05Who named the Triassic in 1834?
Friedrich Alberti
Friedrich Alberti was a saltworks official, not a professor: in the 1820s his own reading of the ground told him where to drill for salt, and he struck it.
Q 06A shallow sea flooded central Europe in the Middle Triassic, leaving thick, shell-packed beds of what?
Limestone
Limestone: the sea was so nearly cut off from the open ocean that at times it turned to brine, and salt settled out between the shell beds.
Q 07Which supercontinent dominated the globe during the Triassic?
Pangaea
Pangaea stretched almost from pole to pole in the shape of a giant C, and it later tore apart into Laurasia in the north and Gondwana in the south.
Q 08What was the Triassic climate like across most of the supercontinent's interior?
Hot and dry
Hot and dry: the interior lay too far from any sea for moist air to reach it, so deserts spread across the land.
Q 09Which mass extinction opened the Triassic?
The end-Permian event
The end-Permian event was the most severe mass extinction on record, wiping out most species in the sea, so the Triassic world was restocked by the descendants of a few survivors.
Q 10The extinction that opened the Triassic is popularly known by what name?
The Great Dying
The Great Dying earned its name by killing most species in the sea, among them the last of the trilobites.
Q 11Which volcanic province is blamed for the extinction that opened the Triassic?
The Siberian Traps
The Siberian Traps were not one volcano but floods of lava that buried a vast swathe of Siberia, and the gases they gave off are blamed for turning the oceans acidic and starving them of oxygen.
Q 12No deposits of which resource are known from the start of the Triassic, a 'gap' to geologists?
Coal
Coal starts as peat, and the gap ran on until peat-forming plants returned in the Middle Triassic; one leading explanation is that the extinction had killed off every plant suited to peat swamps.
Q 13During the Triassic, the contrast between one vast landmass and one global ocean drove what extreme weather?
Megamonsoons
Q 21The cynodonts of the Triassic were the direct ancestors of which living animals?
Mammals
Mammals: with archosaurs ruling the daylight, the first ones stayed small and probably nocturnal, a night shift that may have pushed them towards fur and warm blood.
Q 22The Triassic reptile Tanystropheus is famous for what extreme feature?
A neck longer than its body
A neck longer than its body: it was nearly three times the length of the trunk yet held just 13 bones, and nostrils on top of its snout and interlocking fangs mark it as a hunter that ambushed fish in the water.
Q 23Monte San Giorgio, a UNESCO-listed trove of Triassic marine reptiles, lies where Italy meets which country?
Switzerland
Megamonsoons are thought to have arisen because so much land heated and cooled far faster than the sea, reversing the winds with the seasons and soaking the coasts each summer.
Q 14Which rainy Triassic episode began around 234 million years ago?
The Carnian Pluvial Event
The Carnian Pluvial Event is blamed on a burst of volcanic warming, and dinosaurs, until then rare, spread and diversified in its wake.
Q 15Early Triassic archosaurs split into a crocodile line and a bird line; what is the bird line called?
Avemetatarsalia
Avemetatarsalia started as the minor branch, yet it produced the dinosaurs and, through them, every bird alive, which is why a crocodile's closest living relatives are birds.
Q 16Which single vast ocean surrounded the Triassic supercontinent, covering most of the rest of the globe?
Panthalassa
Panthalassa covered most of the planet, while the much smaller Tethys filled the bay in the supercontinent's side and became the seam along which it later split.
Q 17Which Triassic newcomers were the first vertebrates ever to fly?
Pterosaurs
Pterosaurs took to the air on wings of skin stretched from one hugely elongated fourth finger, tens of millions of years before the first bird or bat.
Q 18Nyasasaurus, a fossil that may be the oldest known dinosaur, spent about 80 years where before it was formally named?
A museum collection
A museum collection: the scientist who first studied the bones in the 1950s never published his work, so when the name finally became official he was listed as an author, years after his death.
Q 19Which tusked plant-eater became by far the most common land vertebrate of the Early Triassic?
Lystrosaurus
Lystrosaurus, a squat burrower with a face like a bulldog with tusks, came through the extinction when dozens of its relatives did not, and its fossils far outnumber any other land animal's in rocks of the time.
Q 20One Triassic plant-eater's fossils in Africa, India and Antarctica became evidence for which theory?
Continental drift
Continental drift: a land animal could not have crossed open ocean, so when its bones turned up in Antarctica at the end of the 1960s they showed that the three lands had once been joined.
Switzerland: the mountain was once a quiet arm of the sea whose oxygen-starved bottom water kept scavengers away, so fish and reptiles that sank into the mud were preserved whole.
Q 24Ichthyosaurs of the Triassic seas evolved a body shape like which living animals?
Dolphins
Dolphins: ichthyosaurs were reptiles that returned to the sea, yet they evolved the same streamlined body and flippers, breathed air and gave birth to live young in the water.
Q 25The giant Triassic marine reptile Shonisaurus is the state fossil of which US state?
Nevada
Nevada: dozens of the whale-sized reptiles lie together in one canyon there, nearly all of them big adults or newborns, which suggests they gathered in that spot to breed.
Q 26Proganochelys, of the Late Triassic, is among the oldest known members of which living reptile group?
Turtles
Turtles: Proganochelys already had a complete shell, but a slightly older fossil from China has only the belly plate, which its finders take to mean the underside of the shell evolved first.
Q 27Mastodonsaurus, a Triassic swamp predator up to six metres long, was what kind of animal?
An amphibian
An amphibian: Mastodonsaurus hunted from ambush in lakes and swamps much as crocodiles do now, and it grew so heavy that adults probably could not haul themselves onto land.
Q 28The earliest known forerunner of which modern amphibians lived in the Early Triassic?
Frogs
Frogs: Triadobatrachus, found in Madagascar, had a froglike head but kept a short tail and a long backbone, and it could not yet jump.
Q 29Hybodonts, the dominant fish of Triassic rivers and seas, were close relatives of which living animals?
Sharks
Sharks: hybodonts, told apart by a spine in front of each back fin, ruled fresh and salt water alike and lasted until the extinction that ended the dinosaurs, by when modern sharks had replaced them.
Q 30Which plant group diversified in the Late Triassic yet survives today as a single species?
Ginkgoales
Ginkgoales survive only as Ginkgo biloba, a tree so rare in the wild that it was long unclear whether any wild ones were left, though people have grown it in China for centuries and now plant it on streets worldwide.