1. University of Michigan, Research Museums Center, 3600 Varsity Drive, Ann Arbor, Michigan, MI 48108, USA;
2. Tyumen State University, 6 Volodarskogo Street, 625003, Tyumen, Russia;
3. Institute of Developmental Biology, Russian Academy of Sciences, Vavilova ulitsa 26, Moscow, 119334, Russia;
4. Sсhmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, B. Khmelnitskogo 15, Kiev, 01-601, Ukraine;
5. Borissiak Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ulitsa 123, Moscow, 117997, Russia;
6. Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, 31270901 Belo Horizonte, Brazil