Skeletal reconstruction of the therizinosaur <i>Enigmosaurus mongoliensis</i>, known from its holotype <b>IGM 100/84</b>. The remains were unearthed from the Bayan Shireh Formation, in Mongolia.<sup id="cite_ref-Barsbold1983_1-0" class="reference"><a href="#cite_note-Barsbold1983-1">[1]</a></sup> It has an estimated length of 5 m (16 ft) with a weight ranging from 454 to 907 kg (1,001 to 2,000 lb)<sup id="cite_ref-Holtz2012_2-0" class="reference"><a href="#cite_note-Holtz2012-2">[2]</a></sup>, although it is commonly known from the pelvis, other body remains were labelled as <b>IGM 100/84</b>, however, definitive assignment of these fossils to the holotype are yet unclear.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3">[3]</a></sup>
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