Figure 1

Map showing the locality where Tarchia tumanovae sp. nov. (MPC-D 100/1353) was discovered (a–d). (a) Map of Mongolia. (b) Enlarged map of the dotted lined rectangle of A marked with the fossil locality (※). (c) Photo of the excavation site. (d) Quarry map showing bone location. (e–f) Skeletal diagram of the specimen in dorsal (e) and left lateral (f) views (white bones represent recovered elements). (g) Skeletal reconstruction with dermal armour. Abbreviations: 7os, Type 7 osteoderm; csr, caudosacral vertebra; dr, dorsal rib; dsr, dorsosacral vertebra; il, ilium; maj os, major osteoderm; ot, ossified tendon; sk, skull. Adobe Illustrator CC (version 24.0.1, https://www.adobe.com/kr/products/illustrator.html) was employed to produce (a–g).