Early Cretaceous Angiosperm Invasion of Western Europe and Major Environmental Changes
Identifieur interne : 000116 ( France/Analysis ); précédent : 000115; suivant : 000117Early Cretaceous Angiosperm Invasion of Western Europe and Major Environmental Changes
Auteurs : C. Coiffard [France] ; B. Gomez [France] ; F. Thevenard [France]Source :
- Annals of Botany [ 0305-7364 ] ; 2007-09.
Abstract
Background and Aims At the beginning of the Late Cretaceous, angiosperms already inhabited all the environments and overtopped previously gymnosperm-dominated floras, especially in disturbed freshwater-related environments. The aim of this paper is to define what fossil plant ecology occurred during the early Cretaceous in order to follow the early spread of angiosperm taxa. Methods Floristic lists and localities from the Barremian to the Albian of Europe are analysed with the Wagner's Parsimony Method. Key results The Wagner's Parsimony Method indicates that (a) during the Barremian, matoniaceous ferns formed a savannah-like vegetation, while angiosperms composed freshwater aquatic vegetation; (b) during the Late Aptian humid phase, conifers increased, while matoniaceous ferns decreased, reflecting the closure of the vegetation; and (c) from the Albian, warmer and drier conditions induced the recovery of the matoniaceous ferns, while core angiosperms first developed in floodplains. Conclusions During the late Early Cretaceous (BarremianAlbian), angiosperms showed a stepwise widening of their ecological range, being recorded first during the Barremian as aquatic plant mega-remains and at the Cenomanian onwards occurred in all the environments.
Url:
- https://api.istex.fr/document/97AF08DB3918A6A53310B7257D0B3D2B57B0BEE8/fulltext/pdf
- http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2533611
DOI: 10.1093/aob/mcm160
Affiliations:
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Coiffard</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>UCB Lyon 1 et UMR 5125, Palobotanique, 7 rue Dubois, F-69622 Villeurbanne</wicri:regionArea><placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Rhône-Alpes</region><settlement type="city">Villeurbanne</settlement></placeName></affiliation></author><author><name sortKey="Gomez, B" sort="Gomez, B" uniqKey="Gomez B" first="B." last="Gomez">B. Gomez</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>UMR 6118 du CNRS Gosciences, Universit Rennes 1, Campus de Beaulieu, avenue du Gnral Leclerc, F-35042 Rennes</wicri:regionArea><placeName><region type="region" nuts="2">Région Bretagne</region><settlement type="city">Rennes</settlement></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">France</country></affiliation></author><author><name sortKey="Thevenard, F" sort="Thevenard, F" uniqKey="Thevenard F" first="F." last="Thevenard">F. Thevenard</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>UCB Lyon 1 et UMR 5125, Palobotanique, 7 rue Dubois, F-69622 Villeurbanne</wicri:regionArea><placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Rhône-Alpes</region><settlement type="city">Villeurbanne</settlement></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Annals of Botany</title><idno type="ISSN">0305-7364</idno><idno type="eISSN">1095-8290</idno><imprint><publisher>Oxford University Press</publisher><date type="published" when="2007-09">2007-09</date><biblScope unit="volume">100</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="545">545</biblScope><biblScope unit="page" to="553">553</biblScope></imprint><idno type="ISSN">0305-7364</idno></series><idno type="istex">97AF08DB3918A6A53310B7257D0B3D2B57B0BEE8</idno><idno type="DOI">10.1093/aob/mcm160</idno><idno type="ArticleID">mcm160</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0305-7364</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract">Background and Aims At the beginning of the Late Cretaceous, angiosperms already inhabited all the environments and overtopped previously gymnosperm-dominated floras, especially in disturbed freshwater-related environments. The aim of this paper is to define what fossil plant ecology occurred during the early Cretaceous in order to follow the early spread of angiosperm taxa. Methods Floristic lists and localities from the Barremian to the Albian of Europe are analysed with the Wagner's Parsimony Method. Key results The Wagner's Parsimony Method indicates that (a) during the Barremian, matoniaceous ferns formed a savannah-like vegetation, while angiosperms composed freshwater aquatic vegetation; (b) during the Late Aptian humid phase, conifers increased, while matoniaceous ferns decreased, reflecting the closure of the vegetation; and (c) from the Albian, warmer and drier conditions induced the recovery of the matoniaceous ferns, while core angiosperms first developed in floodplains. Conclusions During the late Early Cretaceous (BarremianAlbian), angiosperms showed a stepwise widening of their ecological range, being recorded first during the Barremian as aquatic plant mega-remains and at the Cenomanian onwards occurred in all the environments.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Rhône-Alpes</li><li>Région Bretagne</li></region><settlement><li>Rennes</li><li>Villeurbanne</li></settlement></list><tree><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Coiffard, C" sort="Coiffard, C" uniqKey="Coiffard C" first="C." last="Coiffard">C. Coiffard</name></region><name sortKey="Gomez, B" sort="Gomez, B" uniqKey="Gomez B" first="B." last="Gomez">B. Gomez</name><name sortKey="Gomez, B" sort="Gomez, B" uniqKey="Gomez B" first="B." last="Gomez">B. Gomez</name><name sortKey="Thevenard, F" sort="Thevenard, F" uniqKey="Thevenard F" first="F." last="Thevenard">F. 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