Primer Registro de Pelos Fósiles en<i>Glossotherium robustum</i>(Xenarthra, Mylodontidae), Pleistoceno Tardío, Mercedes, Provincia de Buenos Aires, Argentina

Arzani, Héctor; Lanzelotti, Sonia Laura; Suárez, Gabriel E. Acuña; Novo, Nelson Martín

doi:10.5710/amgh.20.10.2014.2798

Cited by 10 publications

(5 citation statements)

References 13 publications

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“…Our macroscopic and microscopic observations confirm the absence of bone marrow of the hair of the skin fragment of Mylodon listai, described by Ridewood in 1901 and mentioned by Arzani et al, (2014).…”

Section: Discussionsupporting

confidence: 89%

Survey of the state of conservation of the Mylodon listai (Xenarthra-Mylodontidae) skin fragment from the Pleistocene of Argentina kept at the Museum of La Plata (Argentina)

Nitiu

Mallo

Saparrat

et al. 2016

GEC

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The aim of the present study was to assess the state of conservation of the fossilized skin fragment assigned to Mylodon listai preserved in a showcase of the Paleontology Hall of the Museum of La Plata. To this end, we conducted a volumetric aerobiological sampling both inside the showcase and in the hall to detect the presence of fungal load that could alter its preservation. We also determined the environmental parameters both inside and outside the showcase. The aerobiological sampling inside the showcase showed 3061.50 spores/m3 corresponding to 22 fungal types, while in the hall, 2283.20 spores/m3 corresponding to 14 fungal types where detected. Cladosporium was the most important type in all the sampling points. The temperatures recorded were lower than those recommended for the conservation of leather and the relative humidity values were acceptable in 70% of the record for this material

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Section: Discussionsupporting

confidence: 89%

Survey of the state of conservation of the Mylodon listai (Xenarthra-Mylodontidae) skin fragment from the Pleistocene of Argentina kept at the Museum of La Plata (Argentina)

Nitiu

Mallo

Saparrat

et al. 2016

GEC

View full text Add to dashboard Cite

show abstract

“…Our macroscopic and microscopic observations conirm the absence of bone marrow of the hair of the skin fragment of Mylodon listai, described by Ridewood in 1901 and mentioned by Arzani et al, (2014).…”

Section: Discussionsupporting

confidence: 83%

Ge-conservación Nº 10

Galán¹

2016

GEC

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Ge-conservación es una publicación periódica del GEIIC, cuyo objetivo es contribuir al desarrollo científico, a la difusión y al intercambio de los conocimientos en materia de conservación y restauración del Patrimonio Cultural. Está dirigida principal, pero no exclusivamente, a los países de habla española y portuguesa. La revista pretende tener un espíritu crítico y dará prioridad a los enfoques interdisciplinares, a la argumentación de criterios y a la metodología. Está abierta a todas las personas cuyas propuestas respondan a los objetivos y características de la publicación. Esta revista provee acceso libre inmediato a su contenido bajo el principio de hacer disponible gratuitamente la investigación al público, lo cual fomenta un mayor intercambio de conocimiento global.

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“…We had the opportunity to perform some additional observations on a skull of Glossotherium robustum (Owen, 1842), housed in the Museo Municipal de Ciencias Naturales “Carlos Ameghino” of Mercedes (MCA 2014), which preserved articulated cranial osteoderms. Hairs associated with these osteoderms were described by Arzani, Lanzelotti, Suárez, and Novo (2014).…”

Section: Methodsmentioning

confidence: 87%

The dermal armor of mylodontid sloths (Mammalia, Xenarthra) from Cueva del Milodón (Última Esperanza, Chile)

Toledo

Boscaini

Pérez

2021

Journal of Morphology

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Dermal ossifications (osteoderms, dermal ossicles, osteoscutes) appear independently in various tetrapod lineages. In mammals, however, dermal ossifications are only present in some members of Xenarthra. This clade includes Cingulata (armadillos and their relatives), and Pilosa, including Vermilingua (anteaters) and Folivora (sloths). In extant xenarthrans, osteoderms are invariably present in cingulates whereas they are absent in pilosans. Among extinct sloths, however, a limited number of taxa possessed dermal ossifications. Records of mummified skins of ground sloths bearing osteoderms found in Cueva del Milodón (Southern Chile), with a late Pleistocene age, allowed us to analyze their micro‐ and macroscopic morphology. The main goal of this study is to closely examine a portion of a mylodontid skin portion using radiography. The arrangement, morphology and internal structure of the ossicles are analyzed and the results are discussed in the context of previous research. The results we obtained indicate that ossicles vary in shape and size, and the integument has four different patterns of arrangement of the ossicles: that is, areas without ossicles, disorganized ossicles, rows, and mosaic areas. The latter has two variants, with clusters of ossicles forming rosettes or stars. Thin sections of the ossicles allowed us to recognize and describe anatomical features of the bone and its mode of growth. Finally, paleobiological and functional considerations of the dermal armor are discussed along with its phylogenetic and chronological implications.

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Primer Registro de Pelos Fósiles enGlossotherium robustum(Xenarthra, Mylodontidae), Pleistoceno Tardío, Mercedes, Provincia de Buenos Aires, Argentina

Cited by 10 publications

References 13 publications

Survey of the state of conservation of the Mylodon listai (Xenarthra-Mylodontidae) skin fragment from the Pleistocene of Argentina kept at the Museum of La Plata (Argentina)

Survey of the state of conservation of the Mylodon listai (Xenarthra-Mylodontidae) skin fragment from the Pleistocene of Argentina kept at the Museum of La Plata (Argentina)

Ge-conservación Nº 10

The dermal armor of mylodontid sloths (Mammalia, Xenarthra) from Cueva del Milodón (Última Esperanza, Chile)

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