@book{bhlpg55346003, title = {Cretaceous flora of Genesee, Alberta }, url = {https://www.biodiversitylibrary.org/page/55346003}, publisher = {University of Alberta}, author = {University of Alberta. Department of Geology. }, year = {1953}, pages = {Page 11}, } @book{bhlpg7375042, title = {Upper Cretaceous floras of the Rocky Mountain region }, volume = {2}, url = {https://www.biodiversitylibrary.org/page/7375042}, publisher = {}, author = {Dorf, Erling, 1905 -1984}, year = {1942}, pages = {Page 98}, } @book{bhlpg7375037, title = {Upper Cretaceous floras of the Rocky Mountain region }, volume = {2}, url = {https://www.biodiversitylibrary.org/page/7375037}, publisher = {}, author = {Dorf, Erling, 1905 -1984}, year = {1942}, pages = {Page 93}, } @book{bhlpg7375069, title = {Upper Cretaceous floras of the Rocky Mountain region }, volume = {2}, url = {https://www.biodiversitylibrary.org/page/7375069}, publisher = {}, author = {Dorf, Erling, 1905 -1984}, year = {1942}, pages = {Page 125}, }