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dc.contributor.author
Choo, Thereis Y.S.  
dc.contributor.author
Escapa, Ignacio Hernán  
dc.contributor.author
Bomfleur, Benjamin  
dc.date.available
2018-05-29T21:38:22Z  
dc.date.issued
2016-09  
dc.identifier.citation
Choo, Thereis Y.S.; Escapa, Ignacio Hernán; Bomfleur, Benjamin; Monotypic colonies of Clathropteris meniscioides (Dipteridaceae) from the Early Jurassic of central Patagonia, Argentina: implications for taxonomy and palaeoecology; E Schweizerbartsche Verlags; Palaeontographica Abteilung B-palaophytologie; 294; 1-4; 9-2016; 85-109  
dc.identifier.issn
2194-900X  
dc.identifier.uri
http://hdl.handle.net/11336/46552  
dc.description.abstract
A collection of over 130 specimens of the fossil dipterid fern Clathropteris meniscioides (Brongn. 1825) Brongn. 1828 from in-situ colonies in the Lower Jurassic of Chubut, Argentina, provides evidence for population-level morphological variation within the species and palaeoecology of the site. Characters such as angle of insertion of secondary veins, tertiary vein arrangement and tooth depth were observed to vary between specimens, and the total range of variation captured by this population was found to overlap and intergrade with the descriptions of several previously identified Clathropteris species. This suggests that species delimitations based on minor differences in such characters should be regarded with skepticism, and that the current number of species ascribed to this genus may be artificially inflated. Abundant C. meniscioides fossils at different development stages buried together in a single, thick bed of sheet-flood deposits provide evidence for the species having formed large, pure colonies in open, disturbed floodplain areas. The characteristic and extremely high leaf-vein densities would have allowed for greater carbon assimilation and rapid growth rates. Altogether, this suggests that the species was a fast-growing pioneer species of floodplains, a prominent part of the Early Jurassic vegetation in Gondwana, and a likely food source for large herbivorous dinosaurs common at that time.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
E Schweizerbartsche Verlags  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Jurassic  
dc.subject
Dipteridaceae  
dc.subject
Taxonomy  
dc.subject
Palaeoecology  
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In Situ Ferns  
dc.subject.classification
Meteorología y Ciencias Atmosféricas  
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Monotypic colonies of Clathropteris meniscioides (Dipteridaceae) from the Early Jurassic of central Patagonia, Argentina: implications for taxonomy and palaeoecology  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-05-29T18:36:21Z  
dc.journal.volume
294  
dc.journal.number
1-4  
dc.journal.pagination
85-109  
dc.journal.pais
Alemania  
dc.description.fil
Fil: Choo, Thereis Y.S.. Cornell University; Estados Unidos  
dc.description.fil
Fil: Escapa, Ignacio Hernán. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Bomfleur, Benjamin. Swedish Museum of Natural History; Suecia  
dc.journal.title
Palaeontographica Abteilung B-palaophytologie  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/palb/detail/294/86916/Monotypic_colonies_of_Clathropteris_meniscioides_D  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1127/palb/294/2016/85