Proportions of the lengths of major elements and series of Bellubrunnus and various rhamphorhynchines.

Data for the clade Rhamphorhynchinae taken from Unwin, 2003; various specimens of Rhamphorhynchus from Wellnhofer, 1975 (numbers in parentheses represent Bennett’s [1995] size classes); Dorygnathus from Padian, 2008; Qinglongopterus from Lü et al., 2012; Nesodactylus from Colbert, 1969). Where necessary data was taken from the radius instead of the ulna. Specimen numbers for Rhamphorhynchus are given as in Wellnhofer, 1975. *Additional institutional abbreviations are given in the footnote.Footnote: Institutional abbreviations for specimens listed in Table 3. AMNH: American Museum of Natural History, New York, U.S.A.; D: Dalian Natural History Museum, Dalian, China; MB: Museum für Naturkunde der Humboldt Universität (Museum for Natural History, Humboldt Museum), Berlin, Germany; MLU: Martin-Luther-Universität Halle-Wittenberg, Germany; MMK: Universitetecs Mineralogisk-Geologiske Instituter og Mineralogisk Museum (University Mineralogy-Geology Institute and Mineralogy Museum), Copenhagen, Denmark; SMD: Staatliches Museum für Mineralogie und Geologie, Dresden (State Museum for Mineralogy and Geology), Germany; TM: Teyler Museum, Haarlem, Netherlands; UB: Katedra geologie a paleontologie Brno (Geological and Palaeontological collection, University of Brno), Czech Republi; UUPM: Palaeontological Museum, University of Uppsala, Sweden.