The single fossil known was found at the "Boot Hill" site in Republic and added to the Stonerose Interpretive Center research collection before being officially described in 2019.

[2] Dragonflies are seemingly rare in the Okakangan highlands with only a single fossil being reported prior to 2019, and few specimens known in museum collections.

Antiquiala snyderae was identified from only the type specimen, the holotype, number SR 08-10-08 A&B, which is a compression fossil preserved in the Stonerose Interpretive Center paleoentomological collection.

Of the members of Aeshninae, the closest genus to A. snyderae seems to be Huncoaeshna, known from a single Ypresian species described from the Laguna del Hunco Formation in South America.

All dragonflies are strong flying active predators who have large eye size granting good visual orientation for hunting.

The highlands, including the Early Eocene formations between Driftwood Canyon at the north and Republic at the south, have been described as one of the "Great Canadian Lagerstätten"[7] based on the diversity, quality and unique nature of the paleofloral and paleofaunal biotas that are preserved.

The highlands temperate biome preserved across a large transect of lakes recorded many of the earliest appearances of modern genera, while also documenting the last stands of ancient lines.

[7] The warm temperate highland floras in association with downfaulted lacustrine basins and active volcanism are noted to have no exact modern equivalents.

[8] The Klondike Mountain Formation represents an upland lake system that was surrounded by a warm temperate ecosystem[3] with nearby volcanism[7] dating from during and just after the early Eocene climatic optimum.

The Okanagan Highlands likely had a mesic upper microthermal to lower mesothermal climate, in which winter temperatures rarely dropped low enough for snow, and which were seasonably equitable.