Issi

Issi (meaning "cold" in Greenlandic) is a plateosaurid dinosaur from the Late Triassic Fleming Fjord Formation of Greenland. It contains one species, Issi saaneq; the full binomial name means "cold bone". Fossils of Issi were previously assigned to the species Plateosaurus trossingensis, but new finds allowed for a reassessment of that material that showed that it possessed features thought to be exclusive to Brazilian sauropodomorphs such as Unaysaurus and Macrocollum. This ultimately led to the designation of Issi as a distinct genus in 2021. This taxon is the first non-avian dinosaur described from Greenland.

==Discovery== thumb|left|Topographic map of Jameson Land and outcrops in Buch Bjerg On 27 July 1991, at the east coast of Greenland, on Jameson Land, in the Iron Cake site on the northern slope of the MacKnight Bjerg near the Flemingfjord, by William W. Amaral, William R. Downs, Stephen M. Gatesy, Neil H. Shubin and Niels Bonde, members of a team from Harvard University headed by Farish Jenkins, a skull was uncovered of a basal sauropodomorph. In 1994, the find was reported in the scientific literature and referred to Plateosaurus engelhardti. In 2018, the correctness of this assignment was doubted. In 1995, a skull was discovered of a smaller juvenile animal. In 2012, an additional three skeletons were excavated. After a CAT-scan by Marco Marzola, Filippo Rotatori and Alexandra Fernandes of the first two finds, followed by a digital deformation, it was concluded in a master's thesis by Victor Beccari that they represented a taxon new to science.