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Description
Tarchia tumanovae is a species of ankylosaurid ankylosaur that lived in Mongolia during Late Cretaceous 72 million years ago. It was one of newly described species of Tarchia in 2021, the other one was Tarchia kiealanae (1977) and Tarchia teresae (2016). It was found in Nemegt Formation, making this dinosaur a contemporary with several dinosaur megaherbivores like Barsbodia, Saurolophus, Deinocheirus, Nemegtosaurus, Ophistocoelicaudia, and Therizinosaurus. the beak morphology of Tarchia tumanovae and Tarchia teresae suggested that these ankylosaurs were selective feeders, preferring certain parts of plants compared t bulk-feeding hadrosaurs it lived with. The holotype specimen of Tarchia tumanovae showed injuries on the tail knob, showing that these ankylosaurs used their tails both for intraspecific combats or defending themselves.

Description
Tarchia tumanovae is a species of ankylosaurid ankylosaur that lived in Mongolia during Late Cretaceous 72 million years ago. It was one of newly described species of Tarchia in 2021, the other one was Tarchia kiealanae (1977) and Tarchia teresae (2016). It was found in Nemegt Formation, making this dinosaur a contemporary with several dinosaur megaherbivores like Barsbodia, Saurolophus, Deinocheirus, Nemegtosaurus, Ophistocoelicaudia, and Therizinosaurus. the beak morphology of Tarchia tumanovae and Tarchia teresae suggested that these ankylosaurs were selective feeders, preferring certain parts of plants compared t bulk-feeding hadrosaurs it lived with. The holotype specimen of Tarchia tumanovae showed injuries on the tail knob, showing that these ankylosaurs used their tails both for intraspecific combats or defending themselves.