Metasequoia (also known as the dawn redwood) is a redwood tree and a living fossil. It has been present from the Cretaceous onwards.
The fossil leaves of Metasequoia are very similar to those of the living species. In fact, for the last 65 million years the tree has remained in a state of morphological stasis.
Fossils of Metasequoia are found all across the Northern Hemisphere, even as far north as Ellesmere Island in Canada.
- Chaney, Ralph W. 1948. The bearing of the living metasequoia on problems of tertiary paleobotany. Botany. 34: 503-515.
- LePage, Ben A., Hong Yang, Midori Matsumoto. The evolution and biogeographic history of Metasequoia. In The Geobiology and Ecology of Metasequoia, edited by Ben A. LePage, Christopher J. Williams and Hong Yang. Springer 2005. Chapter 1: 3-115.
- Christopher J. Williams, Arthur H. Johnson, Ben A. LePage, David R. Vann & Tatsuo Sweda (2003). "Reconstruction of Tertiary Metasequoia forests. II. Structure, biomass, and productivity of Eocene floodplain forests in the Canadian Arctic" (PDF). Paleobiology 29 (2): 271–292. doi:10.1666/0094-8373(2003)029<0271:ROTMFI>2.0.CO;2.
- Langlois, Gaytha A. (2005), "A conservation plant for Metasequoia in China", in LePage, Ben A.; Williams, Christopher James; Yang, Hong, The geobiology and ecology of Metasequoia, Volume 22 of Topics in geobiology, Springer, p. 369, ISBN 1402026315