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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15126931-n:
from 544 million to about 230 million years ago
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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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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
(rgloss)
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01656576-n:
formerly a suborder of Stegocephalia; large Carboniferous and Permian amphibians having vertebrae in which some elements remain separate
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Glosses
(rgloss)
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01661404-n:
oldest known reptiles; turtles and extinct Permian forms
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Glosses
(rgloss)
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01719175-n:
extinct reptiles of the Permian to Jurassic considered ancestral to mammals
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Glosses
(rgloss)
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01719645-n:
extinct mammal-like reptiles found inhabiting all continents from the mid Permian to late Triassic
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Glosses
(rgloss)
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01721898-n:
large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America
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Glosses
(rgloss)
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01722670-n:
carnivorous dinosaur of the Permian in North America having a crest or dorsal sail
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Glosses
(rgloss)
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01723678-n:
extinct terrestrial reptiles having teeth set in sockets; of the late Permian to Triassic
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Glosses
(rgloss)
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11605708-n:
cone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian)
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Glosses
(rgloss)
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11663813-n:
coextensive with the family Ginkgoaceae: plants that first appeared in the Permian and now represented by a single surviving species; often included in Coniferales
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