The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans

The procyonid †Cyonasua is endemic to South America and recorded from the Late Miocene to the Early Pleistocene. This paper studies the forelimb of †Cyonasua sp. (late Pliocene of Miramar, Argentina), using an ecomorphological approach to infer morphological adaptations linked to substrate preferenc...

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Detalles Bibliográficos
Autores principales: Tarquini, Juliana, Toledo, Néstor, Morgan, Cecilia Clara, Soibelzon, Leopoldo Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Paleontología
digging
ecomorphology
grasping
locomotory mode
procyonids
substrate preference
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87578
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87578
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
digging
ecomorphology
grasping
locomotory mode
procyonids
substrate preference
spellingShingle Paleontología
digging
ecomorphology
grasping
locomotory mode
procyonids
substrate preference
Tarquini, Juliana
Toledo, Néstor
Morgan, Cecilia Clara
Soibelzon, Leopoldo Héctor
The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
topic_facet Paleontología
digging
ecomorphology
grasping
locomotory mode
procyonids
substrate preference
description The procyonid †Cyonasua is endemic to South America and recorded from the Late Miocene to the Early Pleistocene. This paper studies the forelimb of †Cyonasua sp. (late Pliocene of Miramar, Argentina), using an ecomorphological approach to infer morphological adaptations linked to substrate preference and locomotory mode, as well as to grasping and digging ability. Twenty linear measurements of forelimb and pectoral girdle were taken from †Cyonasua sp. and a sample of 87 specimens of extant carnivoran families (Procyonidae, Mustelidae, Ursidae, Viverridae, Canidae and Felidae). Raw values were transformed to minimise the effect of size. Morphological variation was explored by principal component analysis (PCA); substrate preference and locomotory mode were further analysed by multivariate analysis of variance (MAV) and discriminant analysis (DA); grasping and digging ability were analysed by DA. In the PCA morphospace, †Cyonasua sp. occupied a unique position, close to extant procyonids. DA classified it as non-specialised digger with poor grasping ability. The results lead to the interpretation of †Cyonasua sp. as having a moderately stabilised elbow joint with poor pronation-supination, although some climbing skills cannot be ruled out. Thus, †Cyonasua sp. could have had generalised habits, in agreement with reconstructed palaeoenvironmental conditions.
format Articulo
Articulo
author Tarquini, Juliana
Toledo, Néstor
Morgan, Cecilia Clara
Soibelzon, Leopoldo Héctor
author_facet Tarquini, Juliana
Toledo, Néstor
Morgan, Cecilia Clara
Soibelzon, Leopoldo Héctor
author_sort Tarquini, Juliana
title The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
title_short The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
title_full The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
title_fullStr The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
title_full_unstemmed The forelimb of †Cyonasua sp. (Procyonidae, Carnivora): ecomorphological interpretation in the context of carnivorans
title_sort forelimb of †cyonasua sp. (procyonidae, carnivora): ecomorphological interpretation in the context of carnivorans
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87578
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