Aletrimyti gaskillae was named by Szostakiwskyj et al. (2015) [Small recumbirostran with the following combination of characters: median anterior braincase bone with well-developed Y-shaped ossification of columella ethmoidalis bracing against skull roof; strongly pointed snout with strongly recumbent premaxilla flooring nearly the entire length of the external naris; lacrimal deeply waisted between orbit and external naris; maxilla does not reach posterior margin of the orbit; ventral orbital process of lacrimal reaches suborbital process of jugal; broad suture between palatine process of prefrontal and palatine;skull diamond-shaped in dorsal view; postparietals converge to a point posteriorly; occipital contribution of postparietals greater than 60% their size; parietal pair no wider than frontal pair; cheek deeply emarginated, with contact between jugal and squamosal reduced or absent; quadrate anteriorly-displaced greater than 30% the length of the skull; coronoid eminence no more than 130% depth of the mandibular ramus; anterior process of coronoid extends more than 50% of the tooth row; depth of surangular less than 50% its length; pleurosphenoids form sutural contact with posterior margin of sphenethmoids.]. Its type specimen is FM-UR 1040, a skull (Skull and lower jaws), and it is a 3D body fossil. Its type locality is Norman, which is in a Kungurian fluvial-lacustrine shale/shale in the Hennessey Formation of Oklahoma.