Extinct Animals - Statistics

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  • The average score is 15 of 60
Answer Stats
Hint Answer % Correct
Famous sail-backed synapsid from the Permian. Dimetrodon
69%
The largest saber-toothed cat of all time. Smilodon
56%
Large carnivorous marsupial that probably died out in the 20th century. Thylacine
50%
The largest carnivorous dinosaur of all time. Spinosaurus
48%
The tallest bird of all time. Moa
46%
The Torosaurus might simply be a mature form of this well-known dinosaur. Triceratops
40%
Ancient predatory whale initially believed to have been a sea serpent. Basilosaurus
39%
Mesozoic marine reptiles known for their very long necks. Plesiosaurs
38%
The human species that first learned to control fire. Homo erectus
37%
Powerful canid that lived in the Americas until about 10000 years ago. Dire wolf
36%
Mesozoic marine reptiles with dolphin-like shapes. Ichthyosaurs
36%
Once the most abundant bird in the world, it died out in 1914. Passenger pigeon
36%
Huge sirenian hunted to extinction by Europeans. Steller's sea cow
36%
Small theropod known for its large brain; binocular vision and nimble fingers. Troodon
36%
The "Velociraptors" of Jurassic Park were modeled after this dinosaur. Deinonychus
35%
Group of carnivorous flightless bird of South America. Terror birds
35%
The largest snake of all time. Titanoboa
35%
Hoofed Eocene predator; one of the largest carnivorous land mammals ever. Andrewsarchus
33%
Large armored mammal from pleistocene South America. Glyptodon
33%
The largest land mammal of all time. Paraceratherium
33%
The largest bear of all time. Short-faced bear
33%
Monstrous pig-like creatures; have been called "hell pigs". Entelodonts
32%
Dominant late Cretaceous marine reptiles. Mosasaurs
31%
This theropod dinosaur had the longest claws of any animal ever. Therizinosaurus
29%
The largest cartilaginous fish of all time. Megalodon
27%
The largest ape of all time. Gigantopithecus
26%
Diverse group of marine arthropods known throughout the Paleozoic. Trilobites
26%
The largest turtle of all time. Archelon
25%
Miocene sperm whale relative; owner of largest teeth ever. Livyatan
25%
The former's short-necked relatives; powerful apex predators. Pliosaurs
25%
Giant crocodilian from the early Cretaceous; possibly the largest ever. Sarcosuchus
25%
A prime rival in size to the former, this time from the late Cretaceous. Deinosuchus
24%
The earliest known dinosaur. Eoraptor
24%
The largest of that group; a powerful apex predator. Dunkleosteus
23%
Penguin-like aquatic toothed bird of the Cretaceous. Hesperornis
21%
Huge proboscidean with downward-curving tusks on the lower jaw. Deinotherium
20%
The largest pterosaur of all time. Quetzalcouatlus
20%
Giant raptor relative; possibly the largest flying bird ever. Argentavis
19%
The largest terrestrial lizard of all time. Megalania
19%
This Pinta Island tortoise was for years the "rarest creature in the world". Lonesome George
18%
The largest eagle of all time. Haast's Eagle
15%
The largest known gorgonopsid. Inostrancevia
15%
Shelled cephalopods extremely common in the Mesozoic. Ammonites
14%
Recently discovered hominin that interbred with us and Neanderthals. Denisovan
14%
This suborder of therapsids gave rise to mammals. Cynodontia
13%
This smallish therapsid was the dominant land animal in the early Triassic. Lystrosaurus
12%
The largest bony fish of all time. Leedsichthys
11%
Class of armored fish from the Paleozoic. Placodermi
10%
Group of extremely large seabirds with tooth-like points in their beaks. Pseudotooth birds
10%
Predatory arthropod relative; possibly the largest creature of the Cambrian. Anomalocaris
8%
The largest land invertebrate of all time. Arthropleura
7%
Cambrian creature of unclear morphology; named for its dreamlike looks. Hallucigenia
7%
Carboniferous dragonfly relative with a huge wingspan. Meganeura
7%
Cephalopods with long, straight shells; abundant in the Paleozoic. Orthocerida
7%
Supposed largest dinosaur of all time; known only from a single bone. Amphicoelias
6%
Order of Paleozoic aquatic arthropods; some grew to gigantic sizes. Eurypterida
6%
A famous Devonian fish with many tetrapod features. Tiktaalik
6%
Order of rodent-like mammals that thrived from Jurassic to Oligocene. Multituberculata
5%
Group of amphibians named after their peculiar tooth structure. Labyrinthodontia
2%
This locust formed the largest swarms known; died out in early 20th century. Rocky Mountain locust
2%
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