. Bulletin. Natural history; Natuurlijke historie. 118 PEABODY MUSEUM BULLETIN 44 Norian Camian Scythian. M? I Sa, Sh I Fig. 62. Dendrogram of Claudiosaurus, Pistosaurus, selected 'nothosaurs,' and other sauropterygians incorporating presumed cladistic relationships and crude stratigraphic positions (ranges) of genera. See text for discussion. Relative stratigraphic positions of problematic genera indicated at right. Data from various sources. A = Anarosaurus; Ce = Ceresiosaurus; Ch = Chinchenia; CI = Claudiosaurus; Co = Corosaurus; Cy = Cymatosaurus; D = Dactylosaurus; Ke = Keichousaurus; Kw
. Bulletin. Natural history; Natuurlijke historie. 118 PEABODY MUSEUM BULLETIN 44 Norian Camian Scythian. M? I Sa, Sh I Fig. 62. Dendrogram of Claudiosaurus, Pistosaurus, selected 'nothosaurs,' and other sauropterygians incorporating presumed cladistic relationships and crude stratigraphic positions (ranges) of genera. See text for discussion. Relative stratigraphic positions of problematic genera indicated at right. Data from various sources. A = Anarosaurus; Ce = Ceresiosaurus; Ch = Chinchenia; CI = Claudiosaurus; Co = Corosaurus; Cy = Cymatosaurus; D = Dactylosaurus; Ke = Keichousaurus; Kw = Kwangsisaurus; L = Lanosaurus; M = Metanothosaurus; Ne = Neusticosaurus; No = Nothosaurus; P = "Pachypleurosaurus"; Pa = Paranothosaurus; Pi = Pistosaurus; Pr = Proneusticosaurus; Ps = Psilotrachelosaurus; Rh = Rhae- ticonia; Sa = Sanchiaosaurus; Se = Serpianosaurus; Sh = Shingyisaurus; Si = Simosaurus. province and Neusticosaurus is representative of pachypleurosaurs in southern Germany; Neusticosaurus ranges through the Ladinian, and Serpianosaurus is known from the Grenzbitumen horizon at the Anisian/Ladinian boundary. The Ladinian to low^ermost Carnian nothosauriform Lanosaurus is know^n from Italy, Switzerland, France, and Spain. The genus Nothosaurus has the greatest known temporal and geographic range. It is reported from the Anisian (possibly upper- most Scythian) to the uppermost Carnian, and in both the Germanic and Tethyan provinces—in Germany, Poland, the Netherlands, Spain, Tunisia, and Israel. Some of these specimens may, however, actually represent distinct but closely related genera such as Paranothosaurus (or perhaps Silvestrosaurus, see Appendix B). Simosaurus from southern Germany ranges from the Ladinian to the up- permost Carnian. If Cymatosaurus is truly congeneric with Micronothosaurus (Schultze 1970), this genus is Anisian and Ladinian, from Germany and Israel, respectively. E. von Huene (1944) has assigned a maxilla from the Upper Bunt- sa
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