Hyperonyms
(has_hyperonym)
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15247518-n:
a unit of geological time during which a system of rocks formed
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Holonyms
(has_holo_part)
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15126175-n:
from 230 million to 63 million years ago
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Related
(has_pertainym)
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03057591-a:
of or relating to or denoting the third period of the Mesozoic era
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Related
(related_to)
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03057591-a:
of or relating to or denoting the third period of the Mesozoic era
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Glosses
(gloss)
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00074095-r:
in the past
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Glosses
(gloss)
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01535709-a:
belonging to the modern era; since the Middle Ages
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Glosses
(gloss)
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01661091-n:
any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms
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Glosses
(gloss)
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02159955-n:
small air-breathing arthropod
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Glosses
(gloss)
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07321772-n:
the event of coming into sight
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Glosses
(gloss)
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11665372-n:
plants having seeds in a closed ovary
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Glosses
(gloss)
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15254028-n:
an era of history having some distinctive feature
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Glosses
(gloss)
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15266911-n:
the point in time at which something ends
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Glosses
(rgloss)
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01515811-n:
primitive reptile-like fossil birds of the Jurassic or early Cretaceous
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Glosses
(rgloss)
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01516609-n:
sparrow-sized fossil bird of the Jurassic period to the Cretaceous period having a keeled breastbone and vestigial tail; found in China; considered possibly the second most primitive of all birds
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Glosses
(rgloss)
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01517036-n:
sparrow-sized fossil bird of the Cretaceous period having a vestigial tail; found in Spain; considered possibly the third most primitive of all birds
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Glosses
(rgloss)
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01701697-n:
quadrupedal armored herbivore of the Jurassic and Cretaceous
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Glosses
(rgloss)
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01702087-n:
armored herbivorous dinosaurs of the Cretaceous
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Glosses
(rgloss)
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01702862-n:
boneheaded dinosaurs; late Cretaceous
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Glosses
(rgloss)
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01703569-n:
any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia
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Glosses
(rgloss)
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01704626-n:
an unusual ceratopsian dinosaur having many large spikes around the edge of its bony frill and a long nose horn; late Cretaceous
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Glosses
(rgloss)
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01704847-n:
most primitive genus of horned dinosaurs; early Cretaceous
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Glosses
(rgloss)
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01705717-n:
duck-billed dinosaurs; upper Cretaceous
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Glosses
(rgloss)
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01706247-n:
genus of large duck-billed dinosaurs; late Cretaceous
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Glosses
(rgloss)
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01706533-n:
genus of duck-billed dinosaurs of late Cretaceous
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Glosses
(rgloss)
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01707294-n:
large duck-billed dinosaur of the Cretaceous period
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Glosses
(rgloss)
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01707698-n:
massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and northern Africa; early Cretaceous period
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Glosses
(rgloss)
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01708998-n:
very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal
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Glosses
(rgloss)
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01710348-n:
herbivorous dinosaurs of the Cretaceous
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Glosses
(rgloss)
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01710529-n:
genus of herbivorous dinosaurs flourishing during the Cretaceous in South America
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Glosses
(rgloss)
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01710747-n:
amphibious quadrupedal herbivorous dinosaur with a long thin neck and whiplike tail; of the Cretaceous mostly in the southern hemisphere
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Glosses
(rgloss)
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01710993-n:
enormous dinosaur of the middle Cretaceous found in Argentina
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Glosses
(rgloss)
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01711160-n:
huge herbivorous dinosaur of Cretaceous found in Argentina
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Glosses
(rgloss)
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01711297-n:
genus of large herbivorous dinosaurs of Cretaceous found in western North America
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Glosses
(rgloss)
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01711496-n:
huge herbivorous dinosaur of the Cretaceous found in western North America
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Glosses
(rgloss)
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01711662-n:
carnivorous saurischian dinosaurs with short forelimbs; Jurassic and Cretaceous
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Glosses
(rgloss)
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01712008-n:
any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
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Glosses
(rgloss)
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01713764-n:
large carnivorous bipedal dinosaur having enormous teeth with knifelike serrations; may have been a scavenger rather than an active predator; later Cretaceous period in North America
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Glosses
(rgloss)
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01715518-n:
gigantic carnivorous bipedal dinosaur of the Jurassic or early Cretaceous in Europe
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Glosses
(rgloss)
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01716122-n:
small toothless saurischian dinosaurs; later Cretaceous period in Canada
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Glosses
(rgloss)
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01718096-n:
swift agile wolf-sized bipedal dinosaur having a large curved claw on each hind foot; of the Cretaceous
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Glosses
(rgloss)
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01718414-n:
large (20-ft) and swift carnivorous dinosaur having an upright slashing claw 15 inches long on each hind foot; early Cretaceous
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Glosses
(rgloss)
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01722998-n:
an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb
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Glosses
(rgloss)
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01724470-n:
later ichthyosaurs of the Jurassic and Cretaceous; widely distributed in both hemispheres
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Glosses
(rgloss)
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01725713-n:
extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
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Glosses
(rgloss)
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02515713-n:
fish thought to have been extinct since the Cretaceous period but found in 1938 off the coast of Africa
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