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dc.contributor.author De Iuliis, Gerardo
dc.contributor.author Cartelle, Cástor
dc.contributor.author Pujos, François Roger Francis
dc.date.available 2018-09-12T20:11:29Z
dc.date.issued 2016-05
dc.identifier.citation De Iuliis, Gerardo; Cartelle, Cástor; Pujos, François Roger Francis; New Pleistocene remains of megalonychid ground sloths (Xenarthra: Pilosa) from the intertropical Brazilian region; Paleontological Society; Journal of Paleontology; 90; 3; 5-2016; 578-587
dc.identifier.issn 0022-3360
dc.identifier.uri http://hdl.handle.net/11336/59437
dc.description.abstract The Pleistocene fossil sloth Australonyx aquae De Iuliis, Cartelle, and Pujos, 2009 (Mammalia, Xenarthra, Megalonychidae) was described from the intertropical region of Brazil. However, its mandible was not known and only cursory descriptions of the ear ossicles were included. The mandible was subsequently recognized among the remains originally collected from the type locality, and belongs to the holotype individual. As a particularly important skeletal element for specific recognition, it requires description to complement our understanding of this species. The ossicles, usually poorly represented in the fossil record, require further description to allow differentiation from those of other sloths. Comparisons of the mandible and ossicles are conducted with homologous elements of the contemporaneous and sympatric Ahytherium aureum Cartelle, De Iuliis, and Pujos, 2008, the only other megalonychid sloth known from intertropical Brazil, and reinforce the distinction between these two species detailed in their initial descriptions. Comparisons with other sloths (e.g., Acratocnus, Megalonyx, Neocnus) also reveal differences with Au. aquae in such features as form and size of the caniniform tooth, angular process, and mandibular condyle. Differences among the malleus and incus of Au. aquae and several species of other sloth clades reveal clade level distinctions among Megatheriidae, Nothrotheriidae, and Megalonychidae. A well-preserved skull from the Brazilian state of Rondônia is noted as probably belonging to Au. aquae. This skull cannot be assigned formally to this species because it is not deposited in a recognized institution, but it does extend considerably the known range of the species.
dc.format application/pdf
dc.language.iso eng
dc.publisher Paleontological Society
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Systematics
dc.subject Pilosa
dc.subject Megalonychidae
dc.subject Brazil
dc.subject.classification Otras Ciencias Naturales y Exactas
dc.subject.classification Otras Ciencias Naturales y Exactas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title New Pleistocene remains of megalonychid ground sloths (Xenarthra: Pilosa) from the intertropical Brazilian region
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-09-12T13:59:46Z
dc.journal.volume 90
dc.journal.number 3
dc.journal.pagination 578-587
dc.journal.pais Estados Unidos
dc.journal.ciudad Lawrence
dc.description.fil Fil: De Iuliis, Gerardo. University of Toronto; Canadá
dc.description.fil Fil: Cartelle, Cástor. Pontifíca Universidade Católica de Minas Gerais; Brasil
dc.description.fil Fil: Pujos, François Roger Francis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
dc.journal.title Journal of Paleontology
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1017/jpa.2016.52
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/journal-of-paleontology/article/new-pleistocene-remains-of-megalonychid-ground-sloths-xenarthra-pilosa-from-the-intertropical-brazilian-region/93404156472AF494ACF9D5BC6D90790C
dc.conicet.fuente individual


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)