Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.

Carnivoran-dominated fossil sites provide precious insights into the diversity and ecology of species rarely recovered in the fossil record. The lower level assemblage of Batallones-1 fossil site (Late Miocene; Madrid Basin, Spain) has yielded one of the most abundant and diversified carnivoran asse...

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Main Authors: M Soledad Domingo, M Teresa Alberdi, Beatriz Azanza, Pablo G Silva, Jorge Morales
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3641116?pdf=render
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author M Soledad Domingo
M Teresa Alberdi
Beatriz Azanza
Pablo G Silva
Jorge Morales
author_facet M Soledad Domingo
M Teresa Alberdi
Beatriz Azanza
Pablo G Silva
Jorge Morales
author_sort M Soledad Domingo
collection DOAJ
description Carnivoran-dominated fossil sites provide precious insights into the diversity and ecology of species rarely recovered in the fossil record. The lower level assemblage of Batallones-1 fossil site (Late Miocene; Madrid Basin, Spain) has yielded one of the most abundant and diversified carnivoran assemblage ever known from the Cenozoic record of mammals. A comprehensive taphonomic study is carried out here in order to constrain the concentration mode of this remarkable assemblage. Another distinctive feature of Batallones-1 is that the accumulation of carnivoran remains took place in the context of a geomorphological landform (cavity formation through a piping process) practically unknown in the generation of fossil sites. Two characteristics of the assemblage highly restrict the probable causes for the accumulation of the remains: (1) the overwhelming number of carnivorans individuals; and (2) the mortality profiles estimated for the four most abundant taxa do not correspond to the classic mortality types but rather were the consequence of the behavior of the taxa. This evidence together with other taphonomic data supports the hypothesis that carnivoran individuals actively entered the cavity searching for resources (food or water) and were unable to exit. The scarcity of herbivores implies that the shaft was well visible and avoided by these taxa. Fossil bones exhibit a very good preservation state as a consequence of their deposition in the restricted and protective environment of the chamber. Batallones-1 had another assemblage (upper level assemblage) that was dominated by herbivore remains and that potentially corresponded to the final stages of the cavity filling.
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spelling doaj.art-c68e178c15814a71997985cde35d966e2022-12-22T01:24:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6304610.1371/journal.pone.0063046Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.M Soledad DomingoM Teresa AlberdiBeatriz AzanzaPablo G SilvaJorge MoralesCarnivoran-dominated fossil sites provide precious insights into the diversity and ecology of species rarely recovered in the fossil record. The lower level assemblage of Batallones-1 fossil site (Late Miocene; Madrid Basin, Spain) has yielded one of the most abundant and diversified carnivoran assemblage ever known from the Cenozoic record of mammals. A comprehensive taphonomic study is carried out here in order to constrain the concentration mode of this remarkable assemblage. Another distinctive feature of Batallones-1 is that the accumulation of carnivoran remains took place in the context of a geomorphological landform (cavity formation through a piping process) practically unknown in the generation of fossil sites. Two characteristics of the assemblage highly restrict the probable causes for the accumulation of the remains: (1) the overwhelming number of carnivorans individuals; and (2) the mortality profiles estimated for the four most abundant taxa do not correspond to the classic mortality types but rather were the consequence of the behavior of the taxa. This evidence together with other taphonomic data supports the hypothesis that carnivoran individuals actively entered the cavity searching for resources (food or water) and were unable to exit. The scarcity of herbivores implies that the shaft was well visible and avoided by these taxa. Fossil bones exhibit a very good preservation state as a consequence of their deposition in the restricted and protective environment of the chamber. Batallones-1 had another assemblage (upper level assemblage) that was dominated by herbivore remains and that potentially corresponded to the final stages of the cavity filling.http://europepmc.org/articles/PMC3641116?pdf=render
spellingShingle M Soledad Domingo
M Teresa Alberdi
Beatriz Azanza
Pablo G Silva
Jorge Morales
Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
PLoS ONE
title Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
title_full Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
title_fullStr Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
title_full_unstemmed Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
title_short Origin of an assemblage massively dominated by carnivorans from the miocene of Spain.
title_sort origin of an assemblage massively dominated by carnivorans from the miocene of spain
url http://europepmc.org/articles/PMC3641116?pdf=render
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