Fluvial dispersal potential of guanaco bones (Lama guanicoe) under controlled experimental conditions: the influence of age classes to the hydrodynamic behavior

Kaufmann, Cristian A.; Gutiérrez, Marisa; Álvarez, María Clara; González, Mariela E.; Massigoge, Agustina

doi:10.1016/j.jas.2010.09.010

Cited by 29 publications

(30 citation statements)

References 16 publications

(25 reference statements)

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“…Actualistic studies have made it possible to identify different agents and processes involved in the spatial displacement of carcasses and bones. Among the most common are fluvial action, which scatters and selects the bones according to their shape, density, and size (e.g., Voorhies 1969;Behrensmeyer 1975;Hanson 1980;Kaufmann et al 2011); trampling by animals and humans, which causes horizontal and vertical displacements even on highly consolidated substrates (e.g., Nielsen 1991;BenitoCalvo et al 2011); and burrowing, produced by animals that move bones while digging tunnels and chambers or when these structures collapse (e.g., Erlandson 1984;Bocek 1986;Mello Araujo and Marcelino 2003). In particular, carnivores modify faunal assemblages by taking or incorporating bones before, during, or after human occupations (e.g., Haynes 1980;Binford 1981;Blumenschine and Marean 1993;Lyman 1994;Yravedra 2010;Camarós et al 2013).…”

Section: Introductionmentioning

confidence: 99%

The role of small carnivores in the movement of bones: implications for the Pampas archaeofaunal record, Argentina

Gutiérrez

Kaufmann

González

et al. 2015

Archaeol Anthropol Sci

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The use of the same spaces and prey by humans and carnivores often leads to the formation of complex faunal assemblages, in which the anatomical and taxonomic composition results from the combined action of these agents. The aim of this paper is to evaluate bone movement based on actualistic research in the Pampas region of Argentina, with an emphasis on the action of carnivores as agents responsible for transport and accumulation of bone. Number of taxa, percentage of specimens affected by carnivores in each environmental context, skeletal representation and carnivore modifications on European hare from the hills and the coast, and bone movement are discussed. The implications of our actualistic results for the regional archaeological record are also addressed. All of the sampled environments presented evidence of carnivore modifications, with percentages between 9 % (coast) and 40 % (hills). This information demonstrates that this agent plays an active role in the formation of modern bone assemblages in the Pampas region and provides a frame of reference for exploring interpretations about the low percentages of carnivore activity recorded in the archaeological record of the region. We argue that carnivores not only modify an assemblage by incorporating or destroying bones, but also by moving them to other locations. Consequently, carnivore effects on site formation in the Pampas region should not be underestimated when their marks are scarce.

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Section: Introductionmentioning

confidence: 99%

The role of small carnivores in the movement of bones: implications for the Pampas archaeofaunal record, Argentina

Gutiérrez

Kaufmann

González

et al. 2015

Archaeol Anthropol Sci

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“…Behrensmeyer, 1975;Coard & Dennell, 1995;Fernandez-Jalvo & Andrews, 2003;Kaufmann et al, 2011) e cada situação tem que ser avaliada separadamente, porque os fatores que podem intervir são diversos. Contudo, mesmo se o número total dos fósseis deste animal é limitado, as maneiras mais simples para explicar uma conjuntura como aquela do Indivíduo 1 da Lagoa Uri de Cima (presença de elementos de quase todas as partes do corpo-crânio, vértebras de todas as regiões da coluna, membros anteriores e posteriores de cada lado, carpo e tarso-ossos com pouca ou sem marcas de abrasão) são duas: (i) morte do animal in situ (ou em área muito próxima); (ii) transporte da carcaça inteira ainda recoberta por tecidos moles, sobre uma distância compatível com a força (não conhecida) da corrente.…”

Section: Discussionunclassified

Observações sobre a repartição espacial dos restos fósseis de preguiça-gigante (gênero Eremotherium) na Lagoa Uri de Cima, Pernambuco, Brasil

Valli¹,

Mützenberg²

2017

Rev. bras. paleontol.

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-REMARKS ON THE SPATIAL ARRANGEMENT OF GIANT SLOTH FOSSIL REMAINS (GENUS EREMOTHERIUM)AT LAGOA URI DE CIMA, PERNAMBUCO, BRAZIL. The results of the study on spatial arrangement, the analysis of marks and the preservation conditions of the giant ground sloth (Eremotherium) remains found in the Lagoa Uri de Cima (Salgueiro, Pernambuco, Brazil), a temporary shallow lake, are presented here. The skeletal elements of the same individual, an adult, found in a restricted area (about 8 m in diameter) and its taphonomic patterns suggest that the animal arrived in the shallow lake as a carcass, and its bones were subsequently spread apart and broken mainly by trampling by other large animals. This taphonomic model also applies to some other Eremotherium individuals found into the "lagoa", but not to all. That means that the sequence of processes affecting the formation of this kind of fossil deposit is generally relatively complex.Key words: taphonomy, weathering, Megatheriidae, Brazil, Northeast region.RESUMO -São aqui apresentados os resultados de um estudo sobre a disposição espacial, análises das marcas e condições de preservação dos restos de preguiça-gigante (Eremotherium) descobertos na Lagoa Uri de Cima (Salgueiro, PE, Brasil). Os elementos esqueléticos de um mesmo indivíduo, um adulto, encontrados em uma área restrita (de cerca 8 m de diâmetro) e seu padrão tafonômico indica que o animal chegou à lagoa no estado de carcaça e seus ossos foram espalhados e danificados subsequentemente, sobretudo pelo pisoteamento de outros animais de grande porte quem transitaram no lugar. Esse modelo tafonômico pode também aplicar-se a alguns outros indivíduos de Eremotherium dessa lagoa, mas não a todos. Isso significa que a série de processos envolvidos na formação de um depósito fossilífero de lagoa é, em geral, relativamente complexa.Palavras-chave: tafonomia, intemperismo, Megatheriidae, Brasil, região Nordeste.

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“…Voorhies ; Behrensmeyer ; Kaufmann et al . ). Other variables, not considered in this preliminary study, include breakage patterns, disarticulation patterns and bone surface modifications.…”

Section: Methodsmentioning

confidence: 97%

Recursive anisotropy: a spatial taphonomic study of the Early Pleistocene vertebrate assemblage of Tsiotra Vryssi, Mygdonia Basin, Greece

Giusti

Konidaris

Tourloukis

et al. 2019

Boreas

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By applying advanced spatial statistical methods, spatial taphonomy complements the traditional taphonomic approach and enhances our understanding of biostratinomic and diagenetic processes. In this study, we elaborate on a specific aspect – spatial anisotropy – of taphonomic processes. We aim to unravel the taphonomic history of the Early Pleistocene vertebrate assemblage of Tsiotra Vryssi (Mygdonia Basin, Greece). Circular statistics are used for the fabric analysis of elongated elements; geostatistics (directional variograms), wavelet and point pattern analyses are applied for detecting anisotropy at the assemblage level. The anisotropy of magnetic susceptibility (AMS) of sedimentary magnetic minerals is also investigated. The results, integrated with preliminary remarks about the differential preservation of skeletal elements, sedimentological and micromorphological observations, suggest multiple dispersion events and recurrent spatial re‐arrangement of a lag, (peri)autochthonous assemblage, consistent with the cyclical lateral switching of a braided fluvial system. Furthermore, this study offers a contribution to the building of a spatial taphonomic referential framework for the interpretation of other fossil vertebrate assemblages, including archaeo‐palaeontological ones.

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Fluvial dispersal potential of guanaco bones (Lama guanicoe) under controlled experimental conditions: the influence of age classes to the hydrodynamic behavior

Cited by 29 publications

References 16 publications

The role of small carnivores in the movement of bones: implications for the Pampas archaeofaunal record, Argentina

The role of small carnivores in the movement of bones: implications for the Pampas archaeofaunal record, Argentina

Observações sobre a repartição espacial dos restos fósseis de preguiça-gigante (gênero Eremotherium) na Lagoa Uri de Cima, Pernambuco, Brasil

Recursive anisotropy: a spatial taphonomic study of the Early Pleistocene vertebrate assemblage of Tsiotra Vryssi, Mygdonia Basin, Greece

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