Affiliation: | 1. Faculty of Biology, Department of Vertebrate Zoology, Saint Petersburg State University, Saint Petersburg, Russia;2. Zoological Institute, Russian Academy of Sciences, Saint Petersburg, Russia;3. Department of Sedimentary Geology, Institute of Earth Sciences, Saint Petersburg State University, Saint Petersburg, Russia;4. Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, DC, USA |