Nectridea (extinct order)
Esquema
Jerarquía
Eukaryota (domain) > Animalia (kingdom) > Chordata (phylum) > Vertebrata (subphylum) > Amphibia (class)
Descripción
Extinct order of order of amphibians characterized by vertebrae in which large fan-shaped hemal arches grow directly downward from the middle of each caudal centrum. Dates to the Lower Pennsylvanian to Middle Permian.
URI original del concepto
Otros términos
- nectrideans [en]
- nectridean [en]