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Thalattosauria
Taxonomy
Thalattosauria was named by Merriam (1905). It was considered monophyletic by Nicholls (1999).
It was reranked as the suborder Thalattosauria by Nopcsa (1923), Roxo (1937); it was synonymized subjectively with Thalattosauromorphi by Hay (1930); it was reranked as the unranked clade Thalattosauria by Cheng et al. (2007).
It was assigned to Diaptosauria by Merriam (1905); to Pelycosauria by Nopcsa (1923); to Rhynchocephalia by Roxo (1937); to Lepidosauria by Kuhn (1966); to Diapsida by Nicholls and Brinkman (1993); to Thalattosauriformes by Nicholls (1999); to Reptilia by Kuhn (1946), Sepkoski (2002); and to Diapsida by Carroll (1988), Cheng et al. (2007).
It was reranked as the suborder Thalattosauria by Nopcsa (1923), Roxo (1937); it was synonymized subjectively with Thalattosauromorphi by Hay (1930); it was reranked as the unranked clade Thalattosauria by Cheng et al. (2007).
It was assigned to Diaptosauria by Merriam (1905); to Pelycosauria by Nopcsa (1923); to Rhynchocephalia by Roxo (1937); to Lepidosauria by Kuhn (1966); to Diapsida by Nicholls and Brinkman (1993); to Thalattosauriformes by Nicholls (1999); to Reptilia by Kuhn (1946), Sepkoski (2002); and to Diapsida by Carroll (1988), Cheng et al. (2007).
Subtaxa