New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis

Paedotherium is a small notoungulate endemic of South America, very abundant in the Neogene assemblages of the Argentine Pampas. Numerous specimens of this taxon were recovered in the Arroyo Chasicó Formation (Late Miocene), following a strict control of their stratigraphic provenance. In this conte...

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Detalles Bibliográficos
Autores principales: Tomassini, R.L., Garrone, M.C., Montalvo, C.I.
Formato: JOUR
Materias:
Argentina
Notoungulata
Paedotherium
Paleohistology
Taphonomy
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_08959811_v73_n_p33_Tomassini
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_08959811_v73_n_p33_Tomassini
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spelling todo:paper_08959811_v73_n_p33_Tomassini2023-10-03T15:43:26Z New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis Tomassini, R.L. Garrone, M.C. Montalvo, C.I. Argentina Notoungulata Paedotherium Paleohistology Taphonomy Notoungulata Paedotherium is a small notoungulate endemic of South America, very abundant in the Neogene assemblages of the Argentine Pampas. Numerous specimens of this taxon were recovered in the Arroyo Chasicó Formation (Late Miocene), following a strict control of their stratigraphic provenance. In this context, a detail taphonomic and paleohistological study were performed, and the results obtained were compared with the information of other Neogene assemblages of Argentina previously studied, in order to interpret the relevance of this taxon in the biocoenosis and taphocoenosis corresponding to this lapse. Before burial, specimens were affected by diverse biostratinomic processes, according to the particular characteristics of each preservational context. After burial, the specimens were modified by the same fossil-diagenetic processes. Similar patterns of preservation were identified in specimens of Paedotherium recovered in other Neogene fluvial deposits of the Argentine Pampas. Based on the bone microstructure, it was possible to differentiate juvenile and adult individuals belonging to different Neogene species of Paedotherium. The mandibles of this taxon maintained the same ontogenetic growth strategy throughout the Late Cenozoic. This work provides novel data on paleoecological and paleobiological features of this taxon. © 2016 Elsevier Ltd JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_08959811_v73_n_p33_Tomassini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentina
Notoungulata
Paedotherium
Paleohistology
Taphonomy
Notoungulata
spellingShingle Argentina
Notoungulata
Paedotherium
Paleohistology
Taphonomy
Notoungulata
Tomassini, R.L.
Garrone, M.C.
Montalvo, C.I.
New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
topic_facet Argentina
Notoungulata
Paedotherium
Paleohistology
Taphonomy
Notoungulata
description Paedotherium is a small notoungulate endemic of South America, very abundant in the Neogene assemblages of the Argentine Pampas. Numerous specimens of this taxon were recovered in the Arroyo Chasicó Formation (Late Miocene), following a strict control of their stratigraphic provenance. In this context, a detail taphonomic and paleohistological study were performed, and the results obtained were compared with the information of other Neogene assemblages of Argentina previously studied, in order to interpret the relevance of this taxon in the biocoenosis and taphocoenosis corresponding to this lapse. Before burial, specimens were affected by diverse biostratinomic processes, according to the particular characteristics of each preservational context. After burial, the specimens were modified by the same fossil-diagenetic processes. Similar patterns of preservation were identified in specimens of Paedotherium recovered in other Neogene fluvial deposits of the Argentine Pampas. Based on the bone microstructure, it was possible to differentiate juvenile and adult individuals belonging to different Neogene species of Paedotherium. The mandibles of this taxon maintained the same ontogenetic growth strategy throughout the Late Cenozoic. This work provides novel data on paleoecological and paleobiological features of this taxon. © 2016 Elsevier Ltd
format JOUR
author Tomassini, R.L.
Garrone, M.C.
Montalvo, C.I.
author_facet Tomassini, R.L.
Garrone, M.C.
Montalvo, C.I.
author_sort Tomassini, R.L.
title New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
title_short New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
title_full New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
title_fullStr New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
title_full_unstemmed New light on the endemic South American pachyrukhine Paedotherium Burmeister, 1888 (Notoungulata, Hegetotheriidae): Taphonomic and paleohistological analysis
title_sort new light on the endemic south american pachyrukhine paedotherium burmeister, 1888 (notoungulata, hegetotheriidae): taphonomic and paleohistological analysis
url http://hdl.handle.net/20.500.12110/paper_08959811_v73_n_p33_Tomassini
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