Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians

Calyptocephalella gayi is one of over 6,000 neobatrachians arranged into two main groups, Hyloides and Ranoides. Phylogenetically, C. gayi is placed in Australobatrachia, a Gondwanan clade that is either the most basal clade of Hyloides or the sister group of Hyloidea, depending on the cladistic hyp...

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Autores principales:	Muzzopappa, P., Pugener, L.A., Báez, A.M.
Formato:	JOUR
Materias:	Anura Intervertebral discs Ontogeny Rana Grande Chilena Vertebral body ossification adolescent anatomy and histology animal bone development Bufonidae cartilage evolution forelimb genetics growth, development and aging hindlimb human pelvis phylogeny Adolescent Animals Biological Evolution Cartilage Forelimb Hindlimb Humans Osteogenesis Pelvis Phylogeny
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03622525_v277_n2_p204_Muzzopappa
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	todo:paper_03622525_v277_n2_p204_Muzzopappa2023-10-03T15:26:55Z Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians Muzzopappa, P. Pugener, L.A. Báez, A.M. Anura Intervertebral discs Ontogeny Rana Grande Chilena Vertebral body ossification adolescent anatomy and histology animal bone development Bufonidae cartilage evolution forelimb genetics growth, development and aging hindlimb human pelvis phylogeny Adolescent Animals Biological Evolution Bufonidae Cartilage Forelimb Hindlimb Humans Osteogenesis Pelvis Phylogeny Calyptocephalella gayi is one of over 6,000 neobatrachians arranged into two main groups, Hyloides and Ranoides. Phylogenetically, C. gayi is placed in Australobatrachia, a Gondwanan clade that is either the most basal clade of Hyloides or the sister group of Hyloidea, depending on the cladistic hypothesis; as such, this species is a key taxon in the study of the early evolution of Neobatrachia. The ontogeny of the postcranial skeleton of C. gayi is described in this article. The description is based on pattern of chondrification and ossification of skeletal elements in a growth series of tadpoles, on juveniles and adult individuals. Particular attention was devoted to some developmental aspects and morphological traits of the adult skeleton. The body of Presacral Vertebra VIII is formed from three centers of ossification, in contrast to the usual two dorsolateral centers observed in the remaining vertebrae of C. gayi, as well as in most anuran taxa for which the development of the axial skeleton is known. Each half of the pelvic girdle arises from a single cartilaginous element. The early development of the autopodia of both the forelimb and hindlimb includes the presence of an additional chondral element, which occurs during the formation of Distal Carpal 5 and the transient formation of Distal Tarsal 4 before the latter is incorporated in the cartilaginous distal end of the fibular. Some osteological aspects of other australobatrachian anurans also are reviewed (e.g., presence of intervertebral discs) based on reports in the literature, as well as first hand observations. In the course of this study, it became evident that further osteological studies are needed to formulate a clear picture of the evolution of skeletal characters not only within Australobatrachia, but also within Neobatrachia. J. Morphol. 277:204-230, 2016. © 2015 Wiley Periodicals, Inc. Fil:Muzzopappa, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Báez, A.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03622525_v277_n2_p204_Muzzopappa
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Anura Intervertebral discs Ontogeny Rana Grande Chilena Vertebral body ossification adolescent anatomy and histology animal bone development Bufonidae cartilage evolution forelimb genetics growth, development and aging hindlimb human pelvis phylogeny Adolescent Animals Biological Evolution Bufonidae Cartilage Forelimb Hindlimb Humans Osteogenesis Pelvis Phylogeny
spellingShingle	Anura Intervertebral discs Ontogeny Rana Grande Chilena Vertebral body ossification adolescent anatomy and histology animal bone development Bufonidae cartilage evolution forelimb genetics growth, development and aging hindlimb human pelvis phylogeny Adolescent Animals Biological Evolution Bufonidae Cartilage Forelimb Hindlimb Humans Osteogenesis Pelvis Phylogeny Muzzopappa, P. Pugener, L.A. Báez, A.M. Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
topic_facet	Anura Intervertebral discs Ontogeny Rana Grande Chilena Vertebral body ossification adolescent anatomy and histology animal bone development Bufonidae cartilage evolution forelimb genetics growth, development and aging hindlimb human pelvis phylogeny Adolescent Animals Biological Evolution Bufonidae Cartilage Forelimb Hindlimb Humans Osteogenesis Pelvis Phylogeny
description	Calyptocephalella gayi is one of over 6,000 neobatrachians arranged into two main groups, Hyloides and Ranoides. Phylogenetically, C. gayi is placed in Australobatrachia, a Gondwanan clade that is either the most basal clade of Hyloides or the sister group of Hyloidea, depending on the cladistic hypothesis; as such, this species is a key taxon in the study of the early evolution of Neobatrachia. The ontogeny of the postcranial skeleton of C. gayi is described in this article. The description is based on pattern of chondrification and ossification of skeletal elements in a growth series of tadpoles, on juveniles and adult individuals. Particular attention was devoted to some developmental aspects and morphological traits of the adult skeleton. The body of Presacral Vertebra VIII is formed from three centers of ossification, in contrast to the usual two dorsolateral centers observed in the remaining vertebrae of C. gayi, as well as in most anuran taxa for which the development of the axial skeleton is known. Each half of the pelvic girdle arises from a single cartilaginous element. The early development of the autopodia of both the forelimb and hindlimb includes the presence of an additional chondral element, which occurs during the formation of Distal Carpal 5 and the transient formation of Distal Tarsal 4 before the latter is incorporated in the cartilaginous distal end of the fibular. Some osteological aspects of other australobatrachian anurans also are reviewed (e.g., presence of intervertebral discs) based on reports in the literature, as well as first hand observations. In the course of this study, it became evident that further osteological studies are needed to formulate a clear picture of the evolution of skeletal characters not only within Australobatrachia, but also within Neobatrachia. J. Morphol. 277:204-230, 2016. © 2015 Wiley Periodicals, Inc.
format	JOUR
author	Muzzopappa, P. Pugener, L.A. Báez, A.M.
author_facet	Muzzopappa, P. Pugener, L.A. Báez, A.M.
author_sort	Muzzopappa, P.
title	Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
title_short	Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
title_full	Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
title_fullStr	Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
title_full_unstemmed	Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians
title_sort	postcranial osteogenesis of the helmeted water toad calyptocephalella gayi (neobatrachia: calyptocephalellidae) with comments on the osteology of australobatrachians
url	http://hdl.handle.net/20.500.12110/paper_03622525_v277_n2_p204_Muzzopappa
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Postcranial osteogenesis of the helmeted water toad Calyptocephalella gayi (Neobatrachia: Calyptocephalellidae) with comments on the osteology of australobatrachians

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