A new pipine frog from an Eocene crater lake in North-Central Tanzania

The fossiliferous site of Mahenge, Tanzania, interpreted as a small lake that formed in a kimberlite intrusion, has yielded a vertebrate assemblage that includes scarce frog remains. Radiometric dating of the pipe indicates that the volcanic activity took place at 45·83 ± 0·17 Ma, whereas infilling...

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Detalles Bibliográficos
Publicado:	2005
Materias:	Africa Eocene Hymeno-chirini Phylogeny Pipidae Pipinae Singidella gen. nov. frog new species phylogeny East Africa Eastern Hemisphere Mahenge Mountains Morogoro [Tanzania] Sub-Saharan Africa Tanzania World Anura Hymenochirus Pipa Pseudhymenochirus Vertebrata
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310239_v48_n4_p723_Baez http://hdl.handle.net/20.500.12110/paper_00310239_v48_n4_p723_Baez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00310239_v48_n4_p723_Baez
record_format	dspace
spelling	paper:paper_00310239_v48_n4_p723_Baez2023-06-08T14:56:51Z A new pipine frog from an Eocene crater lake in North-Central Tanzania Africa Eocene Hymeno-chirini Phylogeny Pipidae Pipinae Singidella gen. nov. Eocene frog new species phylogeny Africa East Africa Eastern Hemisphere Mahenge Mountains Morogoro [Tanzania] Sub-Saharan Africa Tanzania World Anura Hymenochirus Pipa Pipidae Pipinae Pseudhymenochirus Vertebrata The fossiliferous site of Mahenge, Tanzania, interpreted as a small lake that formed in a kimberlite intrusion, has yielded a vertebrate assemblage that includes scarce frog remains. Radiometric dating of the pipe indicates that the volcanic activity took place at 45·83 ± 0·17 Ma, whereas infilling of the crater was completed in 0·2-1·0 myr after emplacement. The frogs, described herein, are preserved as partially articulated skeletons that represent a new pipine taxon, Singidella latecostata gen. et sp. nov. A parsimony analysis of fossil and extant pipoid frogs indicates that Singidella is more closely related to African Hymenochirus and Pseudhymenochirus than to South American Pipa. It also provides weak support for the sister-group relationship of Singidella and the bizarre Late Cretaceous Pachycentrata taqueti (replacement name for Pachybatrachus taqueti) from Niger, although the incomplete preservation of Pachycentrata precludes thorough comparisons. This record indicates that prior to the rifting in the Miocene the distribution of pipines extended into eastern Africa where they do not occur today. © The Palaeontological Association. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310239_v48_n4_p723_Baez http://hdl.handle.net/20.500.12110/paper_00310239_v48_n4_p723_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	Africa Eocene Hymeno-chirini Phylogeny Pipidae Pipinae Singidella gen. nov. Eocene frog new species phylogeny Africa East Africa Eastern Hemisphere Mahenge Mountains Morogoro [Tanzania] Sub-Saharan Africa Tanzania World Anura Hymenochirus Pipa Pipidae Pipinae Pseudhymenochirus Vertebrata
spellingShingle	Africa Eocene Hymeno-chirini Phylogeny Pipidae Pipinae Singidella gen. nov. Eocene frog new species phylogeny Africa East Africa Eastern Hemisphere Mahenge Mountains Morogoro [Tanzania] Sub-Saharan Africa Tanzania World Anura Hymenochirus Pipa Pipidae Pipinae Pseudhymenochirus Vertebrata A new pipine frog from an Eocene crater lake in North-Central Tanzania
topic_facet	Africa Eocene Hymeno-chirini Phylogeny Pipidae Pipinae Singidella gen. nov. Eocene frog new species phylogeny Africa East Africa Eastern Hemisphere Mahenge Mountains Morogoro [Tanzania] Sub-Saharan Africa Tanzania World Anura Hymenochirus Pipa Pipidae Pipinae Pseudhymenochirus Vertebrata
description	The fossiliferous site of Mahenge, Tanzania, interpreted as a small lake that formed in a kimberlite intrusion, has yielded a vertebrate assemblage that includes scarce frog remains. Radiometric dating of the pipe indicates that the volcanic activity took place at 45·83 ± 0·17 Ma, whereas infilling of the crater was completed in 0·2-1·0 myr after emplacement. The frogs, described herein, are preserved as partially articulated skeletons that represent a new pipine taxon, Singidella latecostata gen. et sp. nov. A parsimony analysis of fossil and extant pipoid frogs indicates that Singidella is more closely related to African Hymenochirus and Pseudhymenochirus than to South American Pipa. It also provides weak support for the sister-group relationship of Singidella and the bizarre Late Cretaceous Pachycentrata taqueti (replacement name for Pachybatrachus taqueti) from Niger, although the incomplete preservation of Pachycentrata precludes thorough comparisons. This record indicates that prior to the rifting in the Miocene the distribution of pipines extended into eastern Africa where they do not occur today. © The Palaeontological Association.
title	A new pipine frog from an Eocene crater lake in North-Central Tanzania
title_short	A new pipine frog from an Eocene crater lake in North-Central Tanzania
title_full	A new pipine frog from an Eocene crater lake in North-Central Tanzania
title_fullStr	A new pipine frog from an Eocene crater lake in North-Central Tanzania
title_full_unstemmed	A new pipine frog from an Eocene crater lake in North-Central Tanzania
title_sort	new pipine frog from an eocene crater lake in north-central tanzania
publishDate	2005
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00310239_v48_n4_p723_Baez http://hdl.handle.net/20.500.12110/paper_00310239_v48_n4_p723_Baez
_version_	1768543407944237056

A new pipine frog from an Eocene crater lake in North-Central Tanzania

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