Cones of Metasequoia occidentalis (Newberry) Chaney
Izumi village, Hachioji city, Tokyo, Japan
Late Pliocene, Neogene, Cenozoic (2.2 Ma)
Synonym
Dawn Redwood
Classification
Kingdom Plantae, Phylum Pinophyta (Coniferophyta), Class Pinopsida, Order Pinales, Family Cupressaceae
Diameter of the lower left cone: 15 mm. Two Metasequoia cones at the bottom are fossils recovered from tuffaceous sandstone formed under the fluvial to shallow marine environment. The cone at the top is a modern cone of dawn redwood (Metasequoia cfr. gliptostoroboides Hu et Cheng) growing in the Showa Kinen Park, Tachikawa, Japan.