A new tropical Oligocene dolphin from Montañita/Olón, Santa Elena, Ecuador.
PLoS One
; 12(12): e0188380, 2017.
Article
em En
| MEDLINE
| ID: mdl-29261688
ABSTRACT
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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1
Base de dados:
MEDLINE
Assunto principal:
Golfinhos
/
Fósseis
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article