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Permineralized taxodiaceous seed cones from the upper cretaceous of Hokkaido, Japan
Abstract A new taxodiaceous fossil genus, Mikasastrobus hokkaidoensis gen. et sp. nov. is described on the basis of six permineralized seed cones and a leafy shoot collected from the Upper CretaceousExpand
The present specimen is one of the oldest records of structurally preserved cones that can be assigned to the family Sciadopityaceae and is described on the basis of a permineralized specimen of Hokkaido, Japan. Expand
A Plant Macrofossil Assemblage from the Kiyokawa Formation in the Shimosa Group and Reconstruction of the Palaeoclimate Based on It
千葉県袖ケ浦市吉野田の更新統下総層群清川層 (MIS7.3) から, ナウマンゾウやシカ, カメ類化石とともに11分類群の大型植物化石が取り上げられた. 大型植物化石群は, サルスベリ属, ハリモミ近似種, ブナ, フジを含み, いずれも印象化石だった. このうち, サルスベリ属はヤクシマサルスベリ近似の化石種に同定された. 吉野田の当時の気候は,Expand
Early Cretaceous terrestrial ecosystems in East Asia based on food-web and energy-flow models
In recent years, there has been global interest in the environments and ecosystems around the world. It is helpful to reconstruct past environments and ecosystems to help understand them in theExpand
Ephedroid fossil pollen from the Lower Cretaceous (Upper Albian) of Hokkaido, Japan
Eight ephedroid palynomorphs from the Lower Cretaceous of Hokkaido, Japan are presented to suggest a wide range of diversity in Gnetales at mid- or high-paleolatitude in the eastern side of Lauresia during the Upper Albian. Expand
A structurally preserved cycad-like stem, Lioxylon liaoningense gen. et. sp nov., from the Middle Jurassic in Western Liaoning, China
Abstract A cycad-like fossil stem, Lioxylon liaoningense gen. et sp. nov. is described based on structurally preserved material from the Jurassic in western Liaoning, China. The specimens consist ofExpand
Pinus MUTOI (Pinaceae), a new species of permineralized seed cone from the upper Cretaceous of Hokkaido, Japan
The central umbo, broad sclerotic cortex of cone axis, and absence of serotinous features of the fossil cone suggest affinity with the subsection Sylvestres of the section Pinus, subgenus Pinus. Expand
New discovery of fossil cycad-like plants from the Middle Jurassic of West Liaoning, China
The Cycadales are one of the most ancient lineages ofseed plants, with a fossil record that extends over 250 mil-lion years. Cycads are believed to have originated fromthe Late Palaeozoic, andExpand
Maastrichtian angiospermous pollen records from Sakhalin, Russia
The palynomorphs imply a wide range of angiosperm diversity during Maastrichtian time at the mid- or high-latitudes in the eastern Eurasia. Expand
A new Bennettitalean trunk with unilacunar five-trace nodal structure from the Upper Cretaceous of Hokkaido, Japan.
A new species of Bucklandia is described based on a permineralized fossil trunk that was obtained from sediments of Upper Cretaceous age from Hokkaido, Japan, and is unique among previously described progymnosperms and gymnosperms in possessing a unilacunar five-trace type of nodal structure. Expand