Microsauria (extinct order)

  1. Home
  2. top of the aat hierarchies
  3. Agents Facet
  4. Living Organisms (hierarchy name)
  5. living organisms (entities)
  6. Eukaryota (domain)
  7. Animalia (kingdom)
  8. Chordata (phylum)
  9. Vertebrata (subphylum)
  10. Amphibia (class)
  11. Microsauria
Scope note
Extinct order of order of amphibians characterized by a spool-shaped bony cylinder around the notochord. Dates to the Lower Pennsylvanian to Middle Permian.
Microsauria
Accepted term: 05-Jan-2026