نتایج جستجو برای: palaeobotany
تعداد نتایج: 50 فیلتر نتایج به سال:
Fossil plants are extinct whose remains (referred to as plant fossils) found preserved in sedimentary deposits. Plant fossils classified using fossil-taxa defined the International Code of Nomenclature. Fossil-taxa differ conceptually from taxa living that they often do not refer whole organisms, but one or more parts parent organism, preservational states. There can be complications when two a...
A catalogue of fossil plants collected and/or described by the famous Russian palaeobotanist, an employee Komarov Botanical Institute RAS, Natalia Snigirevskaya is presented. The materials are stored in Laboratory Palaeobotany BIN RAS. References provided to publications based on these collections. accompanied images some holotypes made with modern equipment. short essay life and work precedes ...
This review examines the evolution of the plant vascular system from its beginnings in the green algae to modern arborescent plants, highlighting the recent advances in developmental, organismal, geochemical and climatological research that have contributed to our understanding of the evolution of xylem. Hydraulic trade-offs in vascular structure-function are discussed in the context of canopy ...
The morphology of plant fossils from the Rhynie chert has generated longstanding questions about vascular plant shoot and leaf evolution, for instance, which morphologies were ancestral within land plants, when did vascular plants first arise and did leaves have multiple evolutionary origins? Recent advances combining insights from molecular phylogeny, palaeobotany and evo-devo research address...
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