...Figure 1 SMNS 92101, left humerus of Owenettidae indet. in ( 1 ) dorsal, ( 2 ) posterior, ( 3 ) ventral, and ( 4 ) anterior views, from the Middle Triassic Erfurt Formation (lower Keuper), Germany. Gray areas indicate broken bone. ca=capitellum (radial condyle); dpc=deltopectoral crest; bpr...

... and therefore can present a more robust diagnosis. One of the two clades of Procolophonoidea is Owenettidae, composed of Owenetta and Barasaurus ( Meckert 1995 ). This clade is here diagnosed by five synapomorphies, two of which have an ambiguous evolutionary history: 10*, 14, 24*, –31(1), and 53...

... intrarelationships, including the six currently recognized species in their phylogenetic analysis. They also considered several non-bolosaurid parareptilian taxa such as Mesosauridae, Millerettidae, Owenettidae, and the lanthanosuchoid Acleistorhinus Daly, 1969 . The first two taxa were used as outgroup...

... Owenetta are united in a monophyletic Owenettidae ( Lee 1995 ; deBraga and Rieppel 1997 ; Modesto et al. 2001 , 2003 ; Reisz and Scott 2002 ). The similarities between these two genera were first noted by Piveteau ( 1955 ) who used this as the basis for a biostratigraphical correlation between...

... understood ( Lee, 1995 ), the Procolophonoidea are a clade comprising the Late Permian Owenettidae and Triassic Procolophonidae. There are no synapomorphies linking either or both of these groups with ELGNM 1978.560 to the exclusion of other groups, notably pareiasaurs. Unlike ELGNM 1978.560, in which...

... and the origin of turtles : Nature , 349 . 324 – 326 . Reisz , R.R. , and Scott , D. , 2002 , Owenetta kitchingorum , sp. nov., a small parareptile (Procolophonia: Owenettidae) from the Lower Triassic of South Africa : Journal of Vertebrate Paleontology , 22 . 244 – 256 . Rubidge...

...: Owenettidae) from the Lower Triassic of South Africa : Journal of Vertebrate Paleontology , v. 22 , p. 244 – 256 . Retallack G.J. , Smith R.M.H. , and Ward P.D. , 2003 , Vertebrate extinction across Permian–Triassic boundary in Karoo Basin, South Africa : Geological Society of America...

... for the Uruguayan procolophonoid. The latter phylogenetic scenario would be compatible equally with a Permian or a Triassic age for P. magnidentis , considering that Owenettidae (the sister taxon of the clade containing C. seca and Procolophonidae in most recent analyses, e.g., Modesto et al. 2002 ) has a range...

... Tapinocephalus Assemblage Zone (Hancox and Rubidge, 2002). The Procolophonoidea (the group which unites the Procolophonidae and Owenettidae) occur in Permian to Late Triassic strata ( Benton 1993 ). Of the Owenettidae Owenetta rubidgei is from the Cistecephalus and Dicynodon assemblage zones...

... Reptilia of South Africa in the collection of the British Museum. British Museum (Natural History), London, England. Reisz R.R. Scott D. 2002 Owenetta kitchingorum , sp. nov., a small parareptile (Procolophonia: Owenettidae) from the Lower Triassic of South Africa. Journal of Vertebrate...

... naturwissenschaftliches Archiv , v. 55 , p. 37 – 49 . Reisz , R.R. , and Laurin , M. , 1991 , Owenetta and the origin of turtles : Nature , v. 349 , p. 324 – 326 . Reisz , R.R. , and Scott , D. , 2002 , Owenetta kitchingorum , sp. nov., a small parareptile (Procolophonia: Owenettidae...