Mostrar el registro sencillo del ítem
dc.contributor.author
Echevarría, Javier
dc.date.available
2017-03-06T19:48:45Z
dc.date.issued
2013-10
dc.identifier.citation
Echevarría, Javier; Morphological trends and environment: a case study on early Cretaceous Myophorelloidea (Bivalvia, Trigoniida) from Neuqu en Basin, Argentina; Wiley; Lethaia; 46; 4; 10-2013; 518-539
dc.identifier.uri
http://hdl.handle.net/11336/13573
dc.description.abstract
Trigoniide clams were conspicuous components of bivalve faunas in shallow seas during most of the Mesozoic. Morphological trends in different features of shell shape and ornamentation of three related species of myophorelloids from the Agrio Formation (Early Cretaceous of Neuqu en Basin, Argentina) that inhabited environments of different hydrodynamic energy conditions are explored in this study by means of a detailed morphometric analysis. Four hydrodynamic energy categories were established for depositional environments, from most (1), to least (4), energetic. General shell shape was characterized by measurements of height, length and width. New quantitative methods were developed to evaluate the distribution of costae along the marginal carina and the divergence of costae along the flank. Morphometric variables were detrended with respect to size, to avoid ontogenetic variability in further analyses. Relative width of the shell increases as environments become higher in hydrodynamic energy; this unusual trend may be interpreted as an anchoring/stabilizing strategy developed by the lineage in shallow marine environments. Trends in ornamentation correspond to more densely distributed costae in environments of higher hydrodynamic energy, a pattern that improves substrate penetration.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Trigoniida
dc.subject
Hydrodynamic Energy
dc.subject
Morphometry
dc.subject
Functional Morphology
dc.subject
Cretaceous
dc.subject
Argentina
dc.subject.classification
Paleontología
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Morphological trends and environment: a case study on early Cretaceous Myophorelloidea (Bivalvia, Trigoniida) from Neuqu en Basin, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-03-06T14:10:57Z
dc.identifier.eissn
1502-3931
dc.journal.volume
46
dc.journal.number
4
dc.journal.pagination
518-539
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Echevarría, Javier. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Div.paleozoologia Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Lethaia
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/let.12031
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/let.12031/abstract
Archivos asociados