Glyptostrobus rubenosawaensis sp. nov., a new permineralized conifer species from the Middle Miocene, Central Hokkaido, Japan
Glyptostrobus rubenosawaensis sp. nov., a new permineralized conifer species from the Middle Miocene, Central Hokkaido, Japan
复制标题
红水松 (Glyptotrobus rubenosawaensis sp.)
DOI：
10.2517/prpsj.1.81
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发表时间：
1997
影响因子：
0.9
通讯作者：
H. Nishida
中科院分区：
文献类型：
--
作者：
M. Matsumoto;T. Ohsawa;M. Nishida;H. Nishida
在北海道中部上川区下川镇附近的中中新世晚期下川群的硅化湖沉积中，发现了解剖学上保存完好的Glyptostrobus rubenosawaensis sp. nov.（松柏科-紫杉科）的肥沃和营养遗迹。营养残体包括带多形叶的芽。可育遗骸包括种子和花粉球果。该化石在大体形态上与现存的Glyptostrobus pensilis (D. Don) K. Koch非常相似，但不同之处在于其球果较大，苞片有突出的背向突起，以往关于Glyptostrobus化石的报道仅限于压缩植物群。该报告首次使用过矿化的遗骸来重建化石Glyptostrobus，并记录了该属的内部解剖特征，以便与现存的代表植物G. pensilis进行有意义的比较。根据湿地分类群Decoc/on （Lythraceae）、Osmunda和Alnus，以及山地分类群Picea和Tsuga的共生，并利用过矿化植物化石，Glyptostrobus丰富的r~主特征表明其古生态背景为湿地。我们可以重建一个湖泊的生态环境。
Anatomically well preserved fertile and vegetative remains of Glyptostrobus rubenosawaensis sp. nov. (Coniferae-Taxodiaceae) have been recovered from silicified lacustrine deposits of the late Middle Miocene Shimokawa Group near Shimokawa Town, Kamikawa district, Central Hokkaido. Vegetative remains include shoots bearing polymorphic leaves. Fertile remains include seed and pollen cones. The fossil remains closely resemble living Glyptostrobus pensilis (D. Don) K. Koch in gross morphology, but differ in possessing larger cones and a prominent abaxial projection of the bract Previous reports of fossil Glyptostrobus were limited to compression floras. This report is the first to use permineralized remains to reconstruct fossil Glyptostrobus and document the internal anatomical features of the genus to allow meaningful comparison with the living representative, G. pensilis. Abundant r~mains of Glyptostrobus indicate wetland as the paleoecological setting, based on the cooccurrence of wetland taxa such as Decoc/on (Lythraceae), Osmunda and Alnus, and mountainous taxa such as Picea and Tsuga, and using permineralized plant fossils. We can reconstruct an ecological setting in a lake.
日本北海道东部的海雾和沿海森林
DOI：
--
发表时间：
2016
期刊：
影响因子：
--
作者：
Kamauchi H.;Akasaka M.;Sakimoto M.;Suzuki S.;Ohta T. and Tayasu I.
通讯作者：
Ohta T. and Tayasu I.