Government and other non-profit organizations can be an excellent source of credible, authoritative information. Although they are not generally considered scholarly, they may include scholarly articles in their reference lists, or lead you to other sources.
Some specific sites related to geoscience include:
Flora of the Upper Cretaceous Nanaimo Group of Vancouver Island, British Columbia; Bell, W A. Geological Survey of Canada, Memoir 293, 1957, 84 pages, https://doi.org/10.4095/101457 Open Access