On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications

The biochron of the subfamily Megatheriinae, large to very large terrestrial sloths typified by Megatherium Cuvier, in Argentina extends from the middle Miocene of Patagonia to the late Pleistocene-early Holocene. Megatheriines reached their highest diversity in the lower levels (="conglomerado...

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Detalles Bibliográficos
Autores principales: Brandoni, Diego, Carlini, Alfredo Armando
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Naturales
Argentina
Biogeography
Late Miocene
Megatheriinae
Pyramiodontherium
Systematics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/100781
https://ri.conicet.gov.ar/11336/80294
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-100781
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Argentina
Biogeography
Late Miocene
Megatheriinae
Pyramiodontherium
Systematics
spellingShingle Ciencias Naturales
Argentina
Biogeography
Late Miocene
Megatheriinae
Pyramiodontherium
Systematics
Brandoni, Diego
Carlini, Alfredo Armando
On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
topic_facet Ciencias Naturales
Argentina
Biogeography
Late Miocene
Megatheriinae
Pyramiodontherium
Systematics
description The biochron of the subfamily Megatheriinae, large to very large terrestrial sloths typified by Megatherium Cuvier, in Argentina extends from the middle Miocene of Patagonia to the late Pleistocene-early Holocene. Megatheriines reached their highest diversity in the lower levels (="conglomerado osífero", late Miocene) of the Ituzaingó Formation in Entre Ríos Province, northeastern Argentina. Among the four megatheriines that occur in this unit, the genera Promegatherium Ameghino, Eomegatherium Kraglievich and Pliomegatherium Kraglievich represent relatively small to medium-sized taxa. Here we describe new material assigned to Pyramiodontherium, the largest of the four genera from the same bed and comparable in size to some Quaternary species of Megatherium. Three valid species of Pyramiodontherium have been recognized, all distributed mainly in northwestern Argentina, from the late Miocene in Catamarca Province (and probably also in Tucumán Province), and the late Pliocene in La Rioja Province. The presence of this genus in northeastern Argentina extends its known paleobiogeographical distribution.
format Articulo
Articulo
author Brandoni, Diego
Carlini, Alfredo Armando
author_facet Brandoni, Diego
Carlini, Alfredo Armando
author_sort Brandoni, Diego
title On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
title_short On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
title_full On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
title_fullStr On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
title_full_unstemmed On the presence of <i>Pyramiodontherium</i> (Mammalia, Xenarthra, Megatheriidae) in the late Miocene of northeastern Argentina and its biogeographical implications
title_sort on the presence of <i>pyramiodontherium</i> (mammalia, xenarthra, megatheriidae) in the late miocene of northeastern argentina and its biogeographical implications
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/100781
https://ri.conicet.gov.ar/11336/80294
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AT carlinialfredoarmando onthepresenceofipyramiodontheriumimammaliaxenarthramegatheriidaeinthelatemioceneofnortheasternargentinaanditsbiogeographicalimplications
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