Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans

The anuran Wealdenbatrachus jucarensis Fey, 1988 is represented by several specimens, each consisting of an association of disarticulated bones preserved on slabs from a lignite mine near the village of Uña, Cuenca Province, Spain, from which remains of plants and other vertebrates also have been re...

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Autores principales: Báez, A.M., Gómez, R.O.
Formato: JOUR
Materias:
Anura
Barremian
Iberian Plate
La Huérguina Formation
Vertebrata
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p14_Baez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01956671_v99_n_p14_Baez
record_format dspace
spelling todo:paper_01956671_v99_n_p14_Baez2023-10-03T15:09:39Z Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans Báez, A.M. Gómez, R.O. Anura Barremian Iberian Plate La Huérguina Formation Anura Vertebrata The anuran Wealdenbatrachus jucarensis Fey, 1988 is represented by several specimens, each consisting of an association of disarticulated bones preserved on slabs from a lignite mine near the village of Uña, Cuenca Province, Spain, from which remains of plants and other vertebrates also have been recovered. The bearing unit, La Huérguina Formation, is estimated to be late Barremian in age. Originally these anuran specimens were considered to represent a crown-group costatan closer to the living Discoglossus than to Alytes or Bombina. Herein we redescribe this material, including some hitherto unknown skeletal elements, such as nasal and atlas, and reinterpreting other elements, such as pterygoid and squamosal. Our observations and comparisons led us to validate this taxon and to present an updated restoration. It is noteworthy that several characters that have been used to ally Wealdenbatrachus with the early Barremian Eodiscoglossus santonjae occur widely in basal frogs, thus probably being plesiomorphic at this phylogenetic level, and contrast sharply with the conditions in living costatans. Available information points to a position of W. jucarensis outside the node that unites crown-group costatans, as a relatively basal taxon within Anura. © 2019 JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p14_Baez
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
Barremian
Iberian Plate
La Huérguina Formation
Anura
Vertebrata
spellingShingle Anura
Barremian
Iberian Plate
La Huérguina Formation
Anura
Vertebrata
Báez, A.M.
Gómez, R.O.
Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
topic_facet Anura
Barremian
Iberian Plate
La Huérguina Formation
Anura
Vertebrata
description The anuran Wealdenbatrachus jucarensis Fey, 1988 is represented by several specimens, each consisting of an association of disarticulated bones preserved on slabs from a lignite mine near the village of Uña, Cuenca Province, Spain, from which remains of plants and other vertebrates also have been recovered. The bearing unit, La Huérguina Formation, is estimated to be late Barremian in age. Originally these anuran specimens were considered to represent a crown-group costatan closer to the living Discoglossus than to Alytes or Bombina. Herein we redescribe this material, including some hitherto unknown skeletal elements, such as nasal and atlas, and reinterpreting other elements, such as pterygoid and squamosal. Our observations and comparisons led us to validate this taxon and to present an updated restoration. It is noteworthy that several characters that have been used to ally Wealdenbatrachus with the early Barremian Eodiscoglossus santonjae occur widely in basal frogs, thus probably being plesiomorphic at this phylogenetic level, and contrast sharply with the conditions in living costatans. Available information points to a position of W. jucarensis outside the node that unites crown-group costatans, as a relatively basal taxon within Anura. © 2019
format JOUR
author Báez, A.M.
Gómez, R.O.
author_facet Báez, A.M.
Gómez, R.O.
author_sort Báez, A.M.
title Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
title_short Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
title_full Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
title_fullStr Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
title_full_unstemmed Redescription of the overlooked basal frog Wealdenbatrachus reveals increased diversity among Early Cretaceous anurans
title_sort redescription of the overlooked basal frog wealdenbatrachus reveals increased diversity among early cretaceous anurans
url http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p14_Baez
work_keys_str_mv AT baezam redescriptionoftheoverlookedbasalfrogwealdenbatrachusrevealsincreaseddiversityamongearlycretaceousanurans
AT gomezro redescriptionoftheoverlookedbasalfrogwealdenbatrachusrevealsincreaseddiversityamongearlycretaceousanurans
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