Science

Dinosaur Species

Notable dinosaur species from the Mesozoic Era, with their estimated size, diet, habitat, and distinguishing features.

20 rows6 columns0 views0 downloadsSource: Natural History MuseumUpdated: 2/18/2026
dinosaurssciencepaleontologyprehistoricfossils
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Name
Period
Diet
Estimated Length (m)
Region Found
Notable Feature
Tyrannosaurus RexLate CretaceousCarnivore12.3North AmericaMassive skull with bone-crushing bite force of ~12,800 pounds
VelociraptorLate CretaceousCarnivore2Mongolia / ChinaSickle-shaped retractable claw on each foot; likely feathered
TriceratopsLate CretaceousHerbivore9North AmericaThree facial horns and a large bony frill for defense and display
BrachiosaurusLate JurassicHerbivore26North America / AfricaExtremely long neck; front legs longer than hind legs
StegosaurusLate JurassicHerbivore9North America / EuropeDistinctive rows of bony plates along its back and spiked tail (thagomizer)
SpinosaurusLate CretaceousCarnivore (piscivore)15North AfricaLargest known carnivorous dinosaur; tall sail on its back; semi-aquatic lifestyle
DiplodocusLate JurassicHerbivore27North AmericaExtremely long whip-like tail; one of the longest dinosaurs ever found
AnkylosaurusLate CretaceousHerbivore6.5North AmericaHeavily armored body with a massive bony club at the end of its tail
PteranodonLate CretaceousCarnivore (piscivore)1.8North AmericaWingspan up to 7 meters; toothless beak with a large cranial crest (pterosaur, not dinosaur)
ParasaurolophusLate CretaceousHerbivore10North AmericaLong curved cranial crest likely used for sound communication
AllosaurusLate JurassicCarnivore9.5North America / EuropeTop predator of the Jurassic; powerful jaws with serrated teeth
ArchaeopteryxLate JurassicCarnivore (insectivore)0.5GermanyTransitional fossil between dinosaurs and modern birds; feathered with clawed wings
PachycephalosaurusLate CretaceousHerbivore / Omnivore4.5North AmericaThick dome-shaped skull up to 25 cm thick, possibly used for head-butting
CarnotaurusLate CretaceousCarnivore8South America (Argentina)Bull-like horns above eyes and extremely small forelimbs
IguanodonEarly CretaceousHerbivore10Europe / North America / AfricaOne of the first dinosaurs ever identified; distinctive thumb spike
TherizinosaurusLate CretaceousHerbivore10MongoliaEnormous claws up to 1 meter long, the longest of any known animal
GiganotosaurusLate CretaceousCarnivore13South America (Argentina)One of the largest land predators; slightly larger than T. rex in length
CompsognathusLate JurassicCarnivore1Germany / FranceOne of the smallest known non-avian dinosaurs; chicken-sized
BrontosaurusLate JurassicHerbivore22North AmericaReclassified as a distinct genus from Apatosaurus in 2015; long neck and tail
DeinonychusEarly CretaceousCarnivore3.4North AmericaInspired the 'raptors' in Jurassic Park; large sickle claw and likely pack hunter
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