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Frenguellia(Lycopsida)from the uppermost Devonian of West Junggar,Xinjiang Uygur Autonomous Region,NW China,and its implications on protolepidodendralean leaf morphology and paleophytogeography

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Journal of Palaeogeography 2023年第2期12卷 263-277页

作者： Bing-Cai Liu Kai Wang Rui-Wen Zong Jiao Bai Ning Yang Yi Wang Hong-He Xu State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and PalaeoenvironmentChinese Academy of SciencesNanjing 210008Jiangsu ProvinceChina University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences(Wuhan)Wuhan 430074Hubei ProvinceChina

Protolepidodendralean lycopsids are characteristic of morphologically complex *** taxa of this group are herbaceous and widely distributed in global Devonian sediments,with exceptions of a few members,such as Frenguellia eximia from the Lower Carboniferous of *** this study,we focus on the morphology of Frenguellia eximia and emend its generic and specific diagnoses,based on new materials from the Upper Devonian Hongguleleng Formation of West Junggar,Xinjiang Uygur Autonomous Region,Northwest China,within the fossil-bearing bed palynologically dated as a latest Famennian *** is the first finding of Frenguellia eximia out of *** eximia bears planate leaf with three upward pairs of lateral tips,isomorphic sporophyll to the leaf,and elongated,oval *** morphology of the members of the Order Protolepidodendrales is summarized and classified into lateral-tip and distal-tip ***-tip type leaf consists of an obvious main body and several paired lateral tips,whereas distal-tip type leaf shows a petiole and a distal lamina with several planate or three-dimensional *** leaf types probably indicate two independent evolutionary routes of microphylls evolving from simple leaf of prelycopsids during the Devonian *** new occurrence of Frenguellia eximia further shows paleophytogeographical similarities between West Junggar and northwestern Gondwana.

关键词： Frenguellia Lycopsid Microphyll paleophytogeography Devonian Junggar Basin

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An Early Carboniferous Flora of the Huadu Locality from South China:Its Taxonomic Composition,Paleophytogeographical Position and Paleoecological Interpretation

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Acta Geologica Sinica(English Edition) 2014年第5期88卷 1341-1351页

作者： NAUGOLNYKH Serge V. JIN Jianhua State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources School of Life SciencesSun Yat-sen University Geological Institute Russian Academy of Sciences Kazan Federal University

The Huadu flora of Guangdong Province, South China contains the lepidodendrid Lepidodendron shanyangense Wu et He, its putative rhizophore Stigmaria cf. ficoides （Brongniart） Sternberg; sphenophyte s.l. Archaeocalamites scrobiculatus （Brongniart） Stur; bowmanitid Sphenophyllum tenerrimum （Ettingshausen） Stur; pteridophyll Sphenopteris sp. of uncertain taxonomic position; undetermined ferns gen. et sp. nov.; lyginopterid pteridosperm Rhodeopteridium hsianghsiangense （Sze） Zhang, Zhao et Wu, a trigonocarpoid pteridosperm represented by fronds and isolated pinnules of Paripteris gigantea （Sternberg） Gothan, male fructifications of Potoniea sp., and seeds of Trigonocarpus sp. Ecologically, the Early Carboniferous （Visean） Huadu vegetation was divided into two neighboring communities：（1） a near-shore hydrophilous ＂community A＂ with predominating Archaeocalamites and Rhodeopteridium; and （2） a wet forest ＂community B＂ with predominating shrubby trigonocarpalean pteridosperm Paripteris gigantea （Sternberg） Gothan and tall tree-like lepidodendrid Lepidodendron shanyangense Wu et He. The Huadu vegetation was physiognomically similar to present-day low-latitude mangrove forest.

关键词： Lower Carboniferous Huadu flora paleophytogeography paleoecology GuangdongProvince South China

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Two New Species of Eretmophyllum(Ginkgoales)from the Jurassic of Eastern Siberia

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1014-1025页

作者： Andrey FROLOV Irina MASHCHUK Institute of the Earth's Crust Siberian Branch of the Russian Academy of SciencesIrkutsk 664033Russia

Two new species of Eretmophyllum Thomas are described from the lower(Toarcian)and upper(Aalenian)Prisayan Formation of the Irkutsk Basin,Eastern Siberia,Russia based on distinct morphological and cuticular features of the leaves that distinguish them from other species of the *** polypapillosum *** characterized by the presence of 2-3 papillae on the lower and upper epidermis of ordinary ***,the leaf burials of *** *** that it preferred mesophilic forests developed on river terraces and/or low *** yershowskiensis *** represented exclusively by leaf cuticles extracted by coal maceration,and it probably inhabited the low banks of peat *** presence of the genus Eretmophyllum in the Early Jurassic of France and Eastern Siberia shows that it was already widespread in the territory of Eurasia,distributed from Western Europe to Eastern *** indicates the possible existence of Eretmophyllum species elsewhere in the Early Jurassic such as Central Asia and Northwest China.

关键词： paleobotany ginkgoalean taxonomy paleophytogeography paleoecology leaf cuticles Irkutsk Coal Basin

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Early Norian flora from Partizansk River Basin of Primorye, Russia

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Global Geology 2006年第1期9卷 1-12页

作者： Elena B Volynets Svetlana A Schorokhova Ge Sun Institute of Biology ＆ Soil Science Russian Academy of Sciences Vladivostok 690022 Russia Institute of Engineering ＆ Social Ecology Far-Eastern State Technical University Vladivostok 690060 Russia Research Center of Paleontology ＆ Stratigraphy Jilin University Changchun 130026 China

An early Norian flora from the Partizansk River Basin of Primorye, Far-East of Russia, is described in detail for the first time, in which over 25 taxa are reported. The flora is dominated by cycadoalean, bennettitalean and coniferous plants, associated with a lot of ferns and czekanowskialean plants, and with a few ginkgoalean. In floristic characteristics, the flora can be well comparable with Late Triassic Mongugai flora of southwestern Primorye and its neighboring Tianqiaoling flora of eastern Jilin, China, as well with the Yamanoi and Nariwa floras from southwestern Japan. As the plant-bearing strata are sandwiched in the lower Norian marine beds yielding marine fauna, the age of the Partizansk flora is well evidenced as the early Norian. Paleophytogeographically, the flora appears to be in the ecotone of the Medio-Triassic and Arcto-Triassic floristic regions in Eurasia, and indicates probably warm temperate or subtropic vegetation in nature. Four new species are reported in this paper, including Ctenis elegantus sp. nov, Ixostrobus pacificus sp. nov., Elatocladus elegantus sp. nov. and E. prynadae sp. nov.

关键词： Triassic early Norian flora paleophytogeography Primorye of Russia

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