Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs

Because many fossil pipoid anurans have been described during the past 35 years from Cretaceous deposits in South America and Africa, it is appropriate to revisit some of the earlier ones to have been discovered, viz., Cordicephalus gracilis, C. longicostatus, and Thoraciliacus rostriceps from Israe...

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Detalles Bibliográficos
Publicado: 2006
Materias:
Cretaceous
fossil
frog
morphology
phylogenetics
skull
Asia
Eurasia
Israel
Middle East
Anura
Palaeobatrachus
Pipidae
Thoraciliacus
Thoraciliacus rostriceps
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02724634_v26_n1_p44_Trueb
http://hdl.handle.net/20.500.12110/paper_02724634_v26_n1_p44_Trueb
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02724634_v26_n1_p44_Trueb
record_format dspace
spelling paper:paper_02724634_v26_n1_p44_Trueb2023-06-08T15:25:10Z Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs Cretaceous fossil frog morphology phylogenetics skull Asia Eurasia Israel Middle East Anura Palaeobatrachus Pipidae Thoraciliacus Thoraciliacus rostriceps Because many fossil pipoid anurans have been described during the past 35 years from Cretaceous deposits in South America and Africa, it is appropriate to revisit some of the earlier ones to have been discovered, viz., Cordicephalus gracilis, C. longicostatus, and Thoraciliacus rostriceps from Israel. Careful examination of Cordicephalus, based on study of previously, as well as newly, prepared specimens, reveals the existence of only one species. Cordicephalus gracilis is redescribed and compared with Thoraciliacus, and the phylogenetic relationships of these genera to other living and fossil pipoid frogs are investigated in a parsimony analysis. Thoraciliacus is basal to a clade containing Cordicephalus, Palaeobatrachus, and all other living and fossil pipids; however, the placement of Cordicephalus with respect to Palaeobatrachus and Pipidae is unresolved. Both Thoraciliacus and Cordicephalus retain the primitive state for several pipid synapomorphies involving the condition of the vomers, parasphenoid, and presence of a tympanosquamosal bone. In contrast to Thoraciliacus, however, Cordicephalus is characterized by several derived characters including possession of an otic capsule modified to accommodate a Eustachian tube and depressed, fully ossified opisthocoelous vertebrae. Despite their lack of many pipid specializations, both Thoraciliaus and Cordicephalus seem to possess many morphological features that typically are associated with aquatic habits. Among these are possession of a flat skull with a short rostrum, short axial column, and relatively long metapodials. © 2006 by the Society of Vertebrate Paleontology. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02724634_v26_n1_p44_Trueb http://hdl.handle.net/20.500.12110/paper_02724634_v26_n1_p44_Trueb
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cretaceous
fossil
frog
morphology
phylogenetics
skull
Asia
Eurasia
Israel
Middle East
Anura
Palaeobatrachus
Pipidae
Thoraciliacus
Thoraciliacus rostriceps
spellingShingle Cretaceous
fossil
frog
morphology
phylogenetics
skull
Asia
Eurasia
Israel
Middle East
Anura
Palaeobatrachus
Pipidae
Thoraciliacus
Thoraciliacus rostriceps
Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
topic_facet Cretaceous
fossil
frog
morphology
phylogenetics
skull
Asia
Eurasia
Israel
Middle East
Anura
Palaeobatrachus
Pipidae
Thoraciliacus
Thoraciliacus rostriceps
description Because many fossil pipoid anurans have been described during the past 35 years from Cretaceous deposits in South America and Africa, it is appropriate to revisit some of the earlier ones to have been discovered, viz., Cordicephalus gracilis, C. longicostatus, and Thoraciliacus rostriceps from Israel. Careful examination of Cordicephalus, based on study of previously, as well as newly, prepared specimens, reveals the existence of only one species. Cordicephalus gracilis is redescribed and compared with Thoraciliacus, and the phylogenetic relationships of these genera to other living and fossil pipoid frogs are investigated in a parsimony analysis. Thoraciliacus is basal to a clade containing Cordicephalus, Palaeobatrachus, and all other living and fossil pipids; however, the placement of Cordicephalus with respect to Palaeobatrachus and Pipidae is unresolved. Both Thoraciliacus and Cordicephalus retain the primitive state for several pipid synapomorphies involving the condition of the vomers, parasphenoid, and presence of a tympanosquamosal bone. In contrast to Thoraciliacus, however, Cordicephalus is characterized by several derived characters including possession of an otic capsule modified to accommodate a Eustachian tube and depressed, fully ossified opisthocoelous vertebrae. Despite their lack of many pipid specializations, both Thoraciliaus and Cordicephalus seem to possess many morphological features that typically are associated with aquatic habits. Among these are possession of a flat skull with a short rostrum, short axial column, and relatively long metapodials. © 2006 by the Society of Vertebrate Paleontology.
title Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
title_short Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
title_full Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
title_fullStr Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
title_full_unstemmed Revision of the Early Cretaceous Cordicephalus from Israel and an assessment of its relationships among pipoid frogs
title_sort revision of the early cretaceous cordicephalus from israel and an assessment of its relationships among pipoid frogs
publishDate 2006
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02724634_v26_n1_p44_Trueb
http://hdl.handle.net/20.500.12110/paper_02724634_v26_n1_p44_Trueb
_version_ 1768546251414962176

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