Placodontiformes

Placodontiforms; Temporal range: Middle - Late Triassic, ; 246–201.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Skeleton of the placodontian placodontiform Henodus chelyops
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Superorder:	†Sauropterygia
Clade:	†Placodontiformes; Neenan et al., 2013
Subgroups
	†Atopodentatus?; †Palatodonta; †Placodontia;

Placodontiformes is an extinct clade of sauropterygian marine reptiles that includes placodonts and the non-placodont Palatodonta. It was erected in 2013 with the description of Palatodonta. Placodontiformes is the most basal clade of Sauropterygia and the sister group of Eosauropterygia, which includes all other sauropterygians.^[2]

Phylogeny

Below is a cladogram from Neenan et al. (2013) showing the position of Placodontiformes within Sauropterygia:^[2]

Placodontiformes

Palatodonta

	Pistosaurus File:Pistosaurus BW.jpg

	Augustasaurus

	Diandongosaurus

	Pachypleurosauria File:Keichousaurus BW.jpg

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