نتایج جستجو برای: plant fossils
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Trace fossils of insect feeding have contributed substantially to our understanding of the evolution of insect-plant interactions. The most complex phenotypes of herbivory are galls, whose diagnostic morphologies often allow the identification of the gall inducer. Although fossil insect-induced galls over 300Myr old are known, most are two-dimensional impressions lacking adequate morphological ...
Jurassic deposits a section in south of Zanjan contain various taxa of macro and microfloras. Six plant macrofossil species belonging to five genera of various orders such as Equisetales, Cycadales, Bennettitales, and Pinales (Coniferales) are identified. This section contains seventeen species of palynomorphs in which six spore species allocated to six genera, eight pollen species allocated to...
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...
The essay analyses the research carried out by some members of Accademia dei Lincei on lapides figurati, namely Fabio Colonna animal fossils, and Federico Cesi Francesco Stelluti plant fossils; aim is to show role played in establishing during second half seventeenth century opposite poles debate one hand as chronological indices a past world and, other, sudden outcome vis vegetativa.
The Talbragar Fish Bed is one of Australia's most important Jurassic deposits for freshwater fishes, land plants and aquatic and terrestrial insects. The site has yielded many well preserved fossils, which has led to the formal description of numerous new species and higher taxa. The excellent preservation of many fossils has allowed detailed anatomical studies, e.g. of the early teleost fish C...
The Caulimoviridae is a family of double-stranded DNA viruses that infect plants. genomes most vascular plants contain endogenous caulimovirids (ECVs), class repetitive elements abundant in some plant genomes, resulting from the integration viral chromosomes germline cells during episodes infection have sometimes occurred millions years ago. In this review, we reflect on 25 research ECVs has sh...
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