Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)

Among extant mammals, the presence of osteoderms is limited to armadillos (Xenarthra, Dasypodidae), being one of its distinctive features. The osteoderms are articulated to form a carapace that covers their body dorsally. In this paper we study the integumentary structures of the armadillos Chaetoph...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Krmpotic, Cecilia Mariana, Ciancio, Martín Ricardo, Carlini, Alfredo Armando, Cordeiro de Castro, Mariela, Scarano, Alejo Carlos, Barbeito, Claudio Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Paleontología
Armadillo
Osteoderm
Cornified scales
Histology
Dasypodinae
Euphractinae
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/139218
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-139218
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Armadillo
Osteoderm
Cornified scales
Histology
Dasypodinae
Euphractinae
spellingShingle Paleontología
Armadillo
Osteoderm
Cornified scales
Histology
Dasypodinae
Euphractinae
Krmpotic, Cecilia Mariana
Ciancio, Martín Ricardo
Carlini, Alfredo Armando
Cordeiro de Castro, Mariela
Scarano, Alejo Carlos
Barbeito, Claudio Gustavo
Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
topic_facet Paleontología
Armadillo
Osteoderm
Cornified scales
Histology
Dasypodinae
Euphractinae
description Among extant mammals, the presence of osteoderms is limited to armadillos (Xenarthra, Dasypodidae), being one of its distinctive features. The osteoderms are articulated to form a carapace that covers their body dorsally. In this paper we study the integumentary structures of the armadillos Chaetophractus vellerosus, Chaetophractus villosus, Euphractus sexcinctus, and Zaedyus pichiy (Euphractinae), Dasypus hybridus, and Dasypus novemcinctus (Dasypodinae) within a comparative framework, aiming to identify patterns common to the family and to the subfamilies Dasypodinae and Euphractinae, as well as peculiarities of each species. Differences between the two subfamilies were observed in the dorsal integument, related to the production of blood cells and the mobility of the carapace. The Euphractinae present more numerous and larger cavities filled with adipose tissue in the osteoderms, as well as more marginal follicles than the Dasypodinae. These provide thermal insulation that could be related to their distribution in cooler climates. The sebaceous glands associated with surface follicles are also more developed in the Euphractinae and could be related to preventing the desiccation of the cornified scales in arid climates.
format Articulo
Articulo
author Krmpotic, Cecilia Mariana
Ciancio, Martín Ricardo
Carlini, Alfredo Armando
Cordeiro de Castro, Mariela
Scarano, Alejo Carlos
Barbeito, Claudio Gustavo
author_facet Krmpotic, Cecilia Mariana
Ciancio, Martín Ricardo
Carlini, Alfredo Armando
Cordeiro de Castro, Mariela
Scarano, Alejo Carlos
Barbeito, Claudio Gustavo
author_sort Krmpotic, Cecilia Mariana
title Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
title_short Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
title_full Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
title_fullStr Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
title_full_unstemmed Comparative histology and ontogenetic change in the carapace of armadillos (Mammalia: Dasypodidae)
title_sort comparative histology and ontogenetic change in the carapace of armadillos (mammalia: dasypodidae)
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/139218
work_keys_str_mv AT krmpoticceciliamariana comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
AT cianciomartinricardo comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
AT carlinialfredoarmando comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
AT cordeirodecastromariela comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
AT scaranoalejocarlos comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
AT barbeitoclaudiogustavo comparativehistologyandontogeneticchangeinthecarapaceofarmadillosmammaliadasypodidae
bdutipo_str Repositorios
_version_ 1764820457268183040

Ejemplares similares