The lateral edges of these triangular points can vary from concave to convex, but the modal configuration is convex.
Bases are always concave and oblique to the long axis.
In certain cases, the obliqueness is exaggerated to form a pronounced unilateral barb. They are found scattered across South-western Ontario from the Niagara Escarpment and Peninsula to the east to Lambton County in the west, and primarily within the Carolinian biotic province. These triangular points are characteristic of the western Early Ontario Iroquois, but do occur on sites dating as early as the eighth century. Glen Meyer points are produced on flake blanks and vary from, roughly equilateral to lenticular isoceles in form. The latter shape is quite distinctive, with the barbed lateral margin often being concave, so that these long points may someday be defined as a separate type.