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dc.contributor.author
Codorniú Dominguez, Laura Susana
dc.contributor.author
Chiappe, Luis
dc.contributor.author
Rivarola, David Luciano
dc.date.available
2022-03-31T14:58:29Z
dc.date.issued
2017-09
dc.identifier.citation
Codorniú Dominguez, Laura Susana; Chiappe, Luis; Rivarola, David Luciano; Neonate morphology and development in pterosaurs: Evidence from a ctenochasmatid embryo from the Early Cretaceous of Argentina; Geological Society of America; Geological Society of London Special Publication; 455; 9-2017; 1-12
dc.identifier.issn
0305-8719
dc.identifier.uri
http://hdl.handle.net/11336/154125
dc.description.abstract
We report on a diminutive pterosaur specimen (MIC-V246) from the Lower Cretaceous Lagarcito Formation, that has anatomical features and general proportions which agree with those of other juvenile specimens of the filter-feeding pterosaur Pterodaustro guinazui. MIC-V246 is nearly complete with the majority of its bones in natural articulation. The specimen is preserved within a small oval surface inferred to demarcate the outline of an egg. It includes remains of the skull and mandible, some cervical, dorsal, sacral, and caudal vertebrae, ribs, gastralia, both shoulder girdles, part of the ilium, and the forelimbs and hindlimbs. The skeleton is arranged in a position similar to that of avian embryos, with the wings folded sideways, the hindlimbs flexed, and the skull tucked beneath a wing. The bones are partially covered by an irregularly distributed substance differing in texture and color from the bony elements and identified as remnants of the eggshell. The diminutive size of the skeleton, along with its arrangement and morphology support the identification of this specimen as one of the very few pterosaur embryos known worldwide. Its similarity in size to other Pterodaustro specimens interpreted as hatchlings suggests that MIC-V246 was near hatching when it died.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Geological Society of America
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
PTEROSAURIA
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NEONATE MORPHOLOGY
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CRETACEOUS
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ARGENTINA
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Paleontología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Neonate morphology and development in pterosaurs: Evidence from a ctenochasmatid embryo from the Early Cretaceous of 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
2022-02-09T14:23:15Z
dc.journal.volume
455
dc.journal.pagination
1-12
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Codorniú Dominguez, Laura Susana. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
dc.description.fil
Fil: Chiappe, Luis. San Diego Natural History Museum; Estados Unidos
dc.description.fil
Fil: Rivarola, David Luciano. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina
dc.journal.title
Geological Society of London Special Publication
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://sp.lyellcollection.org/content/early/2017/08/16/SP455.17
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1144/SP455.17
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