Vi fant 1 definisjoner av pelycosauria på engelsk.
Noun |
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| Pelycosauria - edaphosaurus; dimetrodon | ||
| order Pelycosauria | ||
| animal order the order of animals | ||
| subclass synapsida, synapsida extinct reptiles of the Permian to Jurassic considered ancestral to mammals | ||
| pelycosaur large primitive reptile having a tall spinal sail; of the Permian or late Paleozoic in Europe and North America | ||
| edaphosauridae, family edaphosauridae a family of reptiles of the order Pelycosauria | ||