This research was funded by the National Science Center,Poland(grant no.2020/37/B/NZ8/03042).We thank Katarzyna Kopeć(Institute of Systematics and Evolution of Animals,Polish Academy of Sciences,Kraków,Poland)for conducting the spectroscopy analysis.We are also grateful to Lars Vilhelmsen for proofreading the manuscript.We acknowledge Agnieszka Pierwola and David Grimaldi(American Museum of Natural History,New York,USA)for photographic documentation and the loan of specimen AMNH 43502.We thank Tony Mitchell(Maidstone Museum,UK)for the photographic documentation of a specimen MNEMG 1996.308.We also appreciate the support of Mario Schädel(University of Tübingen,Germany)and Nozomu Oyama(Muséum National d'Histoire Naturelle,France)in processing images for RTI imaging and their valuable input on the implementation of this method.We thank Antonio Arillo(Universidad Complutense de Madrid,Spain)for granting access to the specimen MCNA 9292.Additionally,we acknowledge Giliane P.Odin(Gustave Eiffel University,France)and Olivier Béthoux(Muséum National d'Histoire Naturelle,France)for providing photographic documentation of the specimen MNHN.F.A57550,which was supported by funding from the French state via the Agence nationale de la Recherche under the Investissements d'avenir program(ANR-11-INBS-0004-RECOLNAT). （grant no.2020/37/B/NZ8/03042）