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Noun: order Rickettsiales
  1. Pleomorphic Gram-negative microorganisms
    - Rickettsiales

Type of: animal order

Part of: division Eubacteria

Nearest

order Pycnogonida
order Radiolaria
order Rajiformes
order Ranales
order Ranunculales
order Raptores
order Rhamnales
order Rheiformes
order Rhoeadales
order Rhynchocephalia
order Rickettsiales
order Rodentia
order Rosales
order Rubiales
order Salicales
order Salientia
order Santalales
order Sapindales
order Saprolegniales
order Sarcosporidia
order Sarraceniales