Plesiosauria (extinct order)
Esquema
Jerarquía
Eukaryota (domain) > Animalia (kingdom) > Chordata (phylum) > Vertebrata (subphylum) > Reptilia (class) > Diapsida (subclass)
Descripción
Extinct order of fossil marine reptiles characterized by a broad, flattened body, often a small head often on long flexible neck, a short tail, and four large, paddle-like limbs, dating to the Jurassic and Cretaceous periods.
URI original del concepto
Otros términos
- plesiosaurs [en]
- plesiosaur [en]