The PEDIGREE of
Infraclass [McKenna] of Placental Mammals
(follow this descent for clading based on traditional McKenna model)

Born: abt. 120 M BC

Children: Cohort of Epitherials ; Order (L) of Pangolins ; Order (G) of Xenartha (Armadillo : Sloth : Hairy anteater : etc.)

____	____	___	___	___	___	___	___	___	___	___	___	___	___	___
													/	-- Kingdom of Animals +	====> [ 42]
												/	-- Subkingdom of Metazoa (Multicellular Animals)
											/	-- Super-branch Eumetazoa
										/	-- Branch Bilateria
									/	-- Grade (Infrakingdom) of Coelomates
								/	-- Superphylum of Deuterostomes
							/	-- Phylum Chordata (540 M BC - ?)
						/	-- Subphylum Vertebrata (510 M BC - ?)
					/	-- Proto-Class of Jawed Fish (450 M BC)
				/	-- Proto-Class Tetrapoda (Legged Fish) (370 M BC)
			/	-- Proto-Class Amniota (Terrestrial Vertebrates)
		/	-- Proto-Class of Warm-blooded Vertebrates (270 M BC)
	/	-- Class of Mammals (200? M BC - ?)
/	-- Subclass of Therial Mammals (150? M BC - ?)
/
- Infraclass [McKenna] of Placental Mammals