Primer registro de una ballena Sperm Macroraptoriana (Cetacea, Physeteroidea) del Mioceno de Argentina .

Primer registro de una ballena Sperm Macroraptoriana (Cetacea, Physeteroidea) del Mioceno de Argentina .

Bibliographic Details
Main Author: Piazza, David Sebastián
Corporate Author: Sociedade Brasileira de Paleontologia. SBP
Other Authors: Agnolin, Federico Lisandro, Lucero, Sergio
Format: Book
Language:English
Subjects:
LIVYATAN
BALLENAS
MASTOZOOLOGIA
CIENCIAS BIOLOGICAS
PATAGONIA ARGENTINA
Online Access:http://www.sbpbrasil.org/assets/uploads/files/rbp2018309.pdf

MARC

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100 |9 40153  |a Piazza, David Sebastián 
245 |a Primer registro de una ballena Sperm Macroraptoriana (Cetacea, Physeteroidea) del Mioceno de Argentina . 
246 |a First record of a macroraptorial sperm whale (Cetacea, Physeteroidea) from the Miocene of Argentina. 
300 |a p-276-280  |b Contiene Referencia Bibliográfica 
500 |a Raptorial sperm whales of the genus Livyatan were described from the Miocene of Peru and Chile. Revision of paleontological collections resulted in the finding of isolated teeth belonging to aff. Livyatan sp. coming from Early-Middle Miocene strata from Bajo del Gualicho area, Río Negro Province, Argentina. These specimens represent the first finding of this genus in the Southwestern Atlantic Ocean and indicate that Livyatan-like forms were more widespread than previously thought. The reasons of the extinction of such predatory whales are still uncertain, but it is not improbable that it may be correlated with competition for food resources with globicephaline delphinids. This hypothesis still rests on weak evidence and should be evaluated through findings of new specimens, as well as detailed analysis of the fossil record. 
546 |a Texto en inglés 
650 4 |9 40154  |a LIVYATAN 
650 4 |9 40155  |a BALLENAS 
650 1 0 |9 8060  |a MASTOZOOLOGIA 
650 1 0 |9 9  |a CIENCIAS BIOLOGICAS  
651 4 |9 15426  |a PATAGONIA ARGENTINA 
700 1 |9 579  |a Agnolin, Federico Lisandro 
700 |9 40156  |a Lucero, Sergio 
710 2 |9 37015  |a Sociedade Brasileira de Paleontologia. SBP 
773 0 |g vol.21 - No.3 - 2018 Septiembre/Diciembre  |t REVISTA BRASILEIRA DE PALEONTOLOGIA 
856 |u http://www.sbpbrasil.org/assets/uploads/files/rbp2018309.pdf  |z http://www.sbpbrasil.org/assets/uploads/files/rbp2018309.pdf 
942 |2 udc  |c ANA 
945 |a MCF  |d 2019 Febrero 

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