Genus: Issi BECCARI, MATEUS, WINGS, MILAN & CLEMMENSEN, 2021
Etymology: Inuit language Kalaallisut, issi, "cold."

Species: saaneq BECCARI, MATEUS, WINGS, MILAN & CLEMMENSEN, 2021
Etymology: Inuit language Kalaallisut, saaneq, "bone." In reference to the conditiions in which the fossils were recovered.
= cf. Plateosaurus JENKINS, SHUBIN, AMARAL, GATESY, SCHAFF, DOWNS, CLEMMENSEN, BONDE, DAVIDSON & OSBAECK, 1993/1994

Holotype: NHMD 164741 (previously MCZ Field no. 61/91G)

Locality: Macknight Bjerg site, Jameson Land, 71°23.010'N, 22°34.114'W, central East Greenland.

Horizon: Malmros Klint Formaiton, Fleming Fjord Group.

Biostratigraphy:

Age: Mid-Norian Stage, Late Triassic Epoch, Late Triassic.

Material: A nearly complete and partially articulated skull of a late-stage juvenile to sub-adult specimen, missing the anteriormost region of the premaxillae and dentaries and missing most of the right elements. The skull preserves the left premaxilla, both maxillae, both nasals, the left lacrimal, incomplete jugals, incomplete prefrontals, incomplete left postorbital, left squamosal, left quadratojugal, left quadrate, both frontals, the distal part of the left parietal, parts of the braincase (i.e., fragments of the basisphenoid, a fragment of the left laterosphenoid and the left paraoccipital process) both pterygoids, the left ectopterygoid, fragments of the palatines, fragments of the left vomer, both dentaries, the left coronoid process, left splenial, left angular, left surangular, left prearticular left articular and teeth.

Paratype:

= Plateosaurus sp MARZOLA, MATEUS, MILAN & CLEMMENSEN, 2018

Locality: Macknight Bjerg site, Jameson Land, 71°22.993'N, 22°33.972'W, central East Greenland.

Horizon: Malmros Klint Formaiton, Fleming Fjord Group.

Biostratigraphy:

Age: Mid-Norian Stage, Late Triassic Epoch, Late Triassic.

NHMD 164758 (previously 1/G95 or 1/95/G): Anearly complete and articulated skull of a medium-stage juvenile specimen, with lateral deformation, missing most of the posterio-dorsal skull elements (i.e., squamosals, most of the parietals, supraoccipital and prootic). The skull preserves both premaxillae, both maxillae, both nasals, both lacrimals, both prefrontals, the left postorbital, both jugals, the condylar area of both quadrates, both frontals, the anterior part of the left parietal, parts of the braincase (i.e., the left orbitosphenoid, the left laterosphenoid, right basipterygoid process and the parasphenoid process of the basisphenoid), the complete palatal region of the complete mandibles.

Note: Prosaurpod remains were found in areas II, V, VI and VII.
Note: GALTON, 2001 referres these specimens to Plateosaurus longiceps.