Multituberculate mammals from the Middle Jurassic of Western Siberia, Russia, and the origin of Multituberculata

@article{Averianov2020MultituberculateMF,
  title={Multituberculate mammals from the Middle Jurassic of Western Siberia, Russia, and the origin of Multituberculata},
  author={Alexander O. Averianov and Thomas Martin and Alexey V. Lopatin and Julia A. Schultz and Rico Schellhorn and Sergei Krasnolutskii and Pavel P. Skutschas and Stepan Ivantsov},
  journal={Papers in Palaeontology},
  year={2020},
  volume={7}
}
Tashtykia primaeva gen. et sp. nov. and Tagaria antiqua gen. et sp. nov. (Multituberculata incertae sedis) are described based on isolated teeth from the Middle Jurassic (Bathonian) Itat Formation from the Berezovsk coal mine in Krasnoyarsk Territory, Western Siberia, Russia. Tashtykia primaeva gen. et sp. nov. is characterized by a P5 with three rows of cusps (cusp formula 2B:4M:6L) and a high sectorial p4 with two triangular lobes, five serrations associated with labial and lingual ridges… 
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TLDR
Three new euharamiyidan taxa are described based on isolated teeth from the Middle Jurassic Itat Formation of the Berezovsk coal mine in Krasnoyarsk Territory, Western Siberia, Russia based on a premolariform p4, in which the main cusp and basined heel are surrounded by two rows of cusps.
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