Mostrar el registro sencillo del ítem
dc.contributor.author
Cerda, Ignacio Alejandro
dc.contributor.author
Chinssamy Turan, Anusuya
dc.date.available
2023-05-11T11:12:21Z
dc.date.issued
2012-03
dc.identifier.citation
Cerda, Ignacio Alejandro; Chinssamy Turan, Anusuya ; Biological implications of the bone microstructure of the Late Cretaceous Ornithopod Dinosaur Gasparinisaura cincosaltensis; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 32; 3-2012; 355-368
dc.identifier.issn
0272-4634
dc.identifier.uri
http://hdl.handle.net/11336/197113
dc.description.abstract
Here we present the bone histology of Gasparinisaura cincosaltensis, a basal ornithopod from the Late Cretaceous of Patagonia, and discuss its biological implications. The sample includes axial and appendicular elements from several specimens of different ontogenetic stages. The cortex of most bones consists of fibro-lamellar tissue, with mainly longitudinally oriented vascular spaces, which suggests rapid osteogenesis and fast growth. However, the fibro-lamellar bone is commonly interrupted by lines of arrested growth and/or annuli composed of parallel-fibered bone that indicates that the rapid growth was periodic. Although a true outer circumferential layer was not recorded in any of the sampled elements, in several of the larger samples the woven-fibered matrix of the inner and middle cortex grades into a parallel-fibered tissue, which suggests that the attainment of sexual maturity occurred before skeletal maturity. The growth dynamics of Gasparinisaura are similar to those reported in other basal ornithopods. Inter-elemental, as well as intraspecific, variations in histology were observed in Gasparinisaura. Such variation could be the result of sexual dimorphism, or the effect of localized conditions of growth, or perhaps plasticity in growth in response to local environmental conditions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Society of Vertebrate Paleontology
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BONE HISTOLOGY
dc.subject
GASPARINISAURA
dc.subject
GROWTH RATE
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
Biological implications of the bone microstructure of the Late Cretaceous Ornithopod Dinosaur Gasparinisaura cincosaltensis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-20T16:11:06Z
dc.journal.volume
32
dc.journal.pagination
355-368
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Cerda, Ignacio Alejandro. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Chinssamy Turan, Anusuya. University of Cape Town; Sudáfrica
dc.journal.title
Journal of Vertebrate Paleontology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/02724634.2012.646804
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/02724634.2012.646804
Archivos asociados