Neviusia dunthornei

Neviusia dunthornei is an extinct species of flowering plants in the Rosaceae family. The species is solely known from the early Eocene, Ypresian stage,Allenby formation Lacustrine deposits near the town of Princeton, British Columbia.

Neviusia dunthornei is known from only two fossils, the holotype, number "UWBM 54169", and the paratype number "UWBM 97148". Both specimens are preserved in the paleobotanical collections housed in the Burke Museum of Natural History and Culture, part of the University of Washington in Seattle, Washington, USA. The species was described from the two leaf specimens both found at the One Mile Creek locality, UWBM number 53355 in 1991 by Wesley Wehr and Peter Dunthorne. This locality is placed in the early Eocene Allenby Formation, designated the type locality. The Allenby Formation is part of the Eocene Okanogan Highlands floras which span from the Klondike Mountain Formation in Ferry County, Washington north west to Driftwood Canyon Provincial Park near Smithers, British Columbia.

The specimens were studied by paleobotanists Melanie L. DeVore and Steven M. Moore of Georgia College and State University, Kathleen B. Pigg of Arizona State University and Wesley C. Wehr of the Burke Museum. Melanie DeVore and coauthors published the 2004 type description for N. dunthornei in the journal Rhodora. Melanie DeVore and coauthors chose the specific name dunthornei, in honor of Peter Dunthorne of Sedro-Woolley, Washington in recognition of the collecting work throughout the Okanagan highlands which he helped and participated with.