迄今为止，我国共了现异木属（Ｘｅｎｏｘｙｌｏｎ）化石木１０种（包括２新种），它们是Ｘ．ｌａｔｉｐｏｒｏｓｕｍ，Ｘ．ｃｏｎｃｈｙｌｉａｎｕｍ，Ｘ．ｌｉａｏｎｉｎｇｅｎｓｅ，Ｘ．ｊａｐｏｎｉｃｕｍ，Ｘ．ｅｌｌｉｐｔｉｃｕｍ，Ｘ．ｈｏｐｅｉｅｎｓｅ，Ｘ．ｐｅｉｄｅｎｓｅ，Ｘ．ｙｉｘｉａｎｅｎｓｅ，Ｘ．ｆｕｘｉｎｅｎｓｅ ｓｐ．ｎｏｖ．，Ｘ．ｈｕｏｌｉｎｈｅｎｅｓｅ ｓｐ．ｎｏｖ．。文中对该属的古生态作了

The specimens of the Mesozoic fossil wood Xenoxylon have been systematically collected and investigated in this study from eighteen localities in northeastern China. Six species known and two new species have been found, including Xenoxylon latiporosum, X. japonicum, X. ellipticum, X. hopeiense, X. peidense, X. yixianense, X. fuxinense sp. nov. and X. huolinhense sp. nov. In addition, two other species reported by previous authos were also identified as X.conchylianum and X. liaoningense. The palaeoecological environment model and phylogenesis of the genus Xenoxylon are analyzed and discussed here also.

Q914.65

国家自然科学基金! ( 4970 2 0 1 9)资助项目