Experiments on wind dispersal of modern rodent bones

Arriaga, Lucas Cheme; Montalvo, Claudia I.; Sosa, Ramón A.

doi:10.1127/0077-7749/2012/0254

Cited by 6 publications

(9 citation statements)

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“…In particular, Dodson (1973) and Korth (1979) experimentally evaluated small vertebrate bone transport by water, while Korth (1979) and Fernández-Jalvo and Andrews (2003) described the durability of owl pellets in their experimental studies. Although the importance of wind as an agent of bone transport has been habitually noted (Andrews, 1990;Lyman, 1994;Terry, 2004;Arcos et al, 2010), in general, there are few studies that have fully evaluated this effect (Cheme Arriaga et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Owl pellet dispersal by wind: Observations and experimentations

Montalvo¹,

Arriaga²,

Tallade³

et al. 2012

Quaternary International

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Section: Introductionmentioning

confidence: 99%

Owl pellet dispersal by wind: Observations and experimentations

Montalvo¹,

Arriaga²,

Tallade³

et al. 2012

Quaternary International

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“…In the three assemblages, mandibles and maxillae were the dominant bones, and other elements included in different groups according to their transport susceptibility are also represented (Dodson ; Cheme Arriaga et al . ). The presence of bones with low (mandibles) and high (maxillae, vertebrae) susceptibility to transport indicates neither water nor wind played a role in the development of the assemblage.…”

Section: Discussionmentioning

confidence: 97%

“…The skeletal elements were also classified according to their transport susceptibility, both by water or wind, considering the groups proposed by Dodson (), and Cheme Arriaga et al . ().…”

Section: Methodsmentioning

confidence: 97%

Leftover prey remains: a new taphonomic mode from the Late Miocene Cerro Azul Formation of Central Argentina

Montalvo

Tomassini

Sostillo

2016

LET

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The Cerro Azul Formation (La Pampa Province, Argentina) comprises a rich verte- brate fauna of small mammals dominated by notoungulates and rodents. The fauna pertains to the Late Miocene specifically to the Huayquerian Stage/Age. Taphonomic analysis of micro-mammals from Estancia Re locality evidenced that the faunal assem- blage was accumulated by the activity of a predator. This assemblage was compared with others from the Cerro Azul Formation in Telen and Caleufu localities (La Pampa Province), previously interpreted as products of predator activities. These microfossil accumulations differ from assemblages attributed to pellets and faeces produced by modern predators (nocturnal and diurnal bird raptors and carnivore mammals). However, due to their anatomical representation, degree of bone breakage and pres- ence of tooth marks, they are interpreted as accumulations of uneaten prey remains discarded by the predator. The predator involved could not be determined with cer- tainty, although the presence of tooth marks in some skeletal remains and the presence of coprolites in Telen and Caleufu suggest that it could be a carnivore mammal. Simi- larities in the accumulation mechanism, patterns of preservation and sedimentary contexts in the three assemblages support the recognition of a new taphonomic mode, termed ?leftover prey remains?.Fil: Montalvo, Claudia Inés. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Tomassini, Rodrigo Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; ArgentinaFil: Sostillo, Renata. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentin

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“…2017), and the frequency of associated maxillae, dentaries and skull parts contrasts with independently derived hydraulic (Dodson 1973; Korth 1979) and aeolian (Arriaga et al . 2012) sorting groups (Table S4). Skeletal elements also display sharp, matrix‐filled breaks and no evidence of edge rounding by transport.…”

Section: Discussionmentioning

confidence: 99%

Mammal‐bearing gastric pellets potentially attributable to Troodonformosus at the Cretaceous Egg Mountain locality, Two Medicine Formation, Montana, USA

et al. 2021

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Fossil gastric pellets (regurgitalites) have distinct taphonomic characteristics that facilitate inferences of behavioural ecology in deep time, despite their rarity in the fossil record. Using the taphonomic patterns of both extant and fossil small mammals from more recent geologic deposits as a guide, we assess the taphonomy of three unusual multi‐individual aggregates of mammal skeletons from palaeosols at Egg Mountain, a dinosaur nesting locality from the Upper Cretaceous Two Medicine Formation, Montana, USA. One aggregate consists of two individuals of the multituberculate Filikomys primaevus. This specimen is characterized by brecciated crania, articulated postcrania, and an absence of digestive markings, all suggestive of a non‐predatory origin. Two additional aggregates consist of 3 and 11 individuals, respectively, primarily of the marsupialiform Alphadon halleyi. High proportions of crania and indigestible elements (e.g. teeth), extensive disarticulation and breakage, digestive corrosion patterns, and the absence of a phosphatic ground mass are indicative of regurgitalites and align with features of extant prey in diurnal raptor gastric pellets. We interpret these specimens as the oldest known mammal‐bearing regurgitalites. The discrepancy in taphonomic features implies behavioural separation between the two mammalian taxa at the locality. Abundant shed teeth and nesting evidence at the locality favours the non‐avian theropod Troodon formosus as the predator responsible for the regurgitalites, congruent with previous inferences of a small‐bodied prey diet, manipulation of prey during feeding, heightened metabolic processes, and potential nocturnality for this taxon.

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Experiments on wind dispersal of modern rodent bones

Cited by 6 publications

References 0 publications

Owl pellet dispersal by wind: Observations and experimentations

Owl pellet dispersal by wind: Observations and experimentations

Leftover prey remains: a new taphonomic mode from the Late Miocene Cerro Azul Formation of Central Argentina

Mammal‐bearing gastric pellets potentially attributable to Troodonformosus at the Cretaceous Egg Mountain locality, Two Medicine Formation, Montana, USA

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