Sokolova, AB; Moiseeva, MG (2016). «A new species of the genus Sequoiadendron Buchholz (Cupressaceae) from the Upper Cretaceous of the Enmyvaam River Basin, Central Chukotka». Paleontological Journal. 50 (1): 96–107. doi:10.1134/S003103011601010X
Chaney, Ralph W (1950). «A Revision of Fossil Sequoia and Taxodium in Western North America Based on the Recent Discovery of Metasequoia». Transactions of the American Philosophical Society. 40 (3). 188 páginas. JSTOR1005641. doi:10.2307/1005641
Chaney, Ralph W (1950). «A Revision of Fossil Sequoia and Taxodium in Western North America Based on the Recent Discovery of Metasequoia». Transactions of the American Philosophical Society. 40 (3). 188 páginas. JSTOR1005641. doi:10.2307/1005641