Data from: New light shed on Triadophlebiomorpha wing morphology and systematics (Insecta: Odonata)

The Reflectance Transforming Imaging (RTI) documentation contained in this dataset involved the specimens SMNS Grauvogel collection 7885 (‘Staatliches Museum für Naturkunde Stuttgart’, Stuttgart, Germany; wing base; holotype of ‘Triadotypus’ guillaumei), the specimen SNSB-BSPG 1908 I 49 (‘Bayerische Staatssammlung für Paläontologie und Geologie’, Munich, Germany; holotype of Reisia gelasii) and the specimen MNHN.F.B09711 (Palaeontology collection, Muséum National d’Histoire Naturelle, Paris, France; holotype of Piroutetia liasina Meunier, 1907). Photographs were taken using a digital camera Canon EOS 5DS coupled to a Canon 50 mm macro lens (specimen SNSB-BSPG 1908 I 49) and a Canon MP-E 65 mm macro lens (specimens SMNS Grauvogel collection 7885 and MNHN.F.B09711) (all Canon, Tokyo, Japan). Each RTI file was derived from a set of 54 photographs obtained using a light dome of about 30 cm in diameter and equipped with the same number of LEDs (but because of the expansion of the MP-E 65 mm macro lens inside the dome, only 47 photographs were useful in the case of the wing base of the holotype of the specimen SMNS Grauvogel collection 7885). Both the light dome and camera were driven by a control box. Obtained images were then batch-optimized using Adobe Photoshop CS6 and were further compiled into an RTI file using the RTI Builder software v.2.0.2 using the HSH fitter (software freely available from Cultural Heritage Imaging). The holotype of Piroutetia liasina is crossed by a fault filled with calcite. As a consequence, the two sides mismatch. In order to ease comparison with other taxa, they were readjusted digitally prior to the computation of the RTI file, as part of the batch-optimization. The RTIViewer v1.1 software, available from Cultural Heritage Imaging, allows visualizing these files.