Eucinodonts [1] ( lat. Eucynodontia ) is the synapsid infraorder from the suborder of the cynodonts that lived from the beginning of the Triassic to the beginning of the Cretaceous ( 251.2 [2] –140.2 [3] million years ago, if mammals are not included here) at all continents of the planet.
| † Eucinodonts |
Reconstruction of cynognathus ( Cynognathus ) |
| Scientific classification |
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| No rank : | Bilateral symmetrical |
| Infrastructure : | † Eucinodonts |
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| International scientific name |
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Eucynodontia Kemp , 1982 |
Geochronology251.2-140.2 Ma | million years | Period | Era | Aeon |
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| 2,588 | Even | | | Ka | F
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th | | 23.03 | Neogene | | 66.0 | Paleogen | | 145.5 | a piece of chalk | M
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th | | 199.6 | Yura | | 251 | Triassic | | 299 | Permian | P
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th | | 359.2 | Carbon | | 416 | Devonian | | 443.7 | Silur | | 488.3 | Ordovician | | 542 | Cambrian | | 4570 | Precambrian |
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Mass Permian Extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion |
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