Pedigree: Infraphylum Tetrapoda

The PEDIGREE of

Infraphylum Tetrapoda

(Amniota are in Reptiliomorpha)

Note: It seems a severe violation of taxonomy that the Class of Birds is just part of an Infraclass within Reptiles, but that is the conclusion of modern genetic studies. Similarly, all tetrapods descend from the class of lobe-finned fishes. For related reasons, a clade like Sauropsida is sometimes called Subclass, sometimes Superclass!

"Child(ren)": Class Amphibia ; Microphylum Amniota ; extinct Reptiliomorphs

______	______	_____	_____	_____	_____	_____	_____	_____	_____	_____	_____	_____	_____	_____	_____
														/	-- Subkingdom of Metazoa +	====> [ 57]
													/	-- Superbranch Eumetazoa
												/	-- Superphylum Planulozoa
											/	-- Branch Bilateria
										/	-- Infrakingdom (Grade) of Coelomates
										/		\| or: prob. Clade Nephrozoa
									/	-- Superphylum of Deuterostomes
								/	-- Phylum Chordata (540 M BC - ?)
							/	-- Clade Craniata
						/	-- Subphylum Vertebrata (510 M BC - ?)
					/	-- Infraphylum Gnathostomata
				/	-- Microphylum Teleostomi
			/	-- Superclass Osteichthyes (Bony fishes)
		/	-- Class Sarcopterygii (Lobe-finned Fishes)
	/	-- Clade of Rhipidistia
/	-- Subclass Tetrapodamorpha
/
- Infraphylum Tetrapoda

``4-Great Grandchildren:'' Suborder Neobatrachia ; Superfamily Chelonioidea (Sea Turtles) ; Superorder Lepidosauria ; Clade of Archosauria ; Infraclass Eutheria (Placental Mammals) ; Infraclass Metatheria (Marsupials & extinct kin)