A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador

A new small probable Oligocene dolphin from Ecuador represents a new genus and species, Urkudelphis chawpipacha. The new taxon is known from a single juvenile skull and earbones; it differs from other archaic dolphins in features including widely exposed frontals at the vertex, a dorsally wide open...

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Autores principales: Tanaka, Yoshihiro, Abella, Juan, Aguirre-Fernández, Gabriel, Gregori, Maria, Fordyce, R. Ewan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737981/
https://www.ncbi.nlm.nih.gov/pubmed/29261688
http://dx.doi.org/10.1371/journal.pone.0188380
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author Tanaka, Yoshihiro
Abella, Juan
Aguirre-Fernández, Gabriel
Gregori, Maria
Fordyce, R. Ewan
author_facet Tanaka, Yoshihiro
Abella, Juan
Aguirre-Fernández, Gabriel
Gregori, Maria
Fordyce, R. Ewan
author_sort Tanaka, Yoshihiro
collection PubMed
description A new small probable Oligocene dolphin from Ecuador represents a new genus and species, Urkudelphis chawpipacha. The new taxon is known from a single juvenile skull and earbones; it differs from other archaic dolphins in features including widely exposed frontals at the vertex, a dorsally wide open vomer at the mesorostral groove, and a strongly projected and pointed lateral tuberosity of the periotic. Phylogenetic analysis places it toward the base of the largely-extinct clade Platanistoidea. The fossil is one of a few records of tropical fossil dolphins.
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spelling pubmed-57379812017-12-29 A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador Tanaka, Yoshihiro Abella, Juan Aguirre-Fernández, Gabriel Gregori, Maria Fordyce, R. Ewan PLoS One Research Article A new small probable Oligocene dolphin from Ecuador represents a new genus and species, Urkudelphis chawpipacha. The new taxon is known from a single juvenile skull and earbones; it differs from other archaic dolphins in features including widely exposed frontals at the vertex, a dorsally wide open vomer at the mesorostral groove, and a strongly projected and pointed lateral tuberosity of the periotic. Phylogenetic analysis places it toward the base of the largely-extinct clade Platanistoidea. The fossil is one of a few records of tropical fossil dolphins. Public Library of Science 2017-12-20 /pmc/articles/PMC5737981/ /pubmed/29261688 http://dx.doi.org/10.1371/journal.pone.0188380 Text en © 2017 Tanaka et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Tanaka, Yoshihiro
Abella, Juan
Aguirre-Fernández, Gabriel
Gregori, Maria
Fordyce, R. Ewan
A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title_full A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title_fullStr A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title_full_unstemmed A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title_short A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador
title_sort new tropical oligocene dolphin from montañita/olón, santa elena, ecuador
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737981/
https://www.ncbi.nlm.nih.gov/pubmed/29261688
http://dx.doi.org/10.1371/journal.pone.0188380
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