Bioerosion traces on titanosaurian sauropod bones from the Upper Cretaceous Marília Formation of Brazil

Neto, Voltaire D. Paes; Francischini, Heitor; Martinelli, Agustín G.; Marinho, Thiago da Silva; Ribeiro, Luiz Carlos Borges; Soares, Marina Bento; Schultz, César Leandro

doi:10.1080/03115518.2018.1456561

Cited by 14 publications

(2 citation statements)

References 66 publications

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“…Plant roots constitute common biological agents that can biochemically damage bone (Sarjeant 1975;Behrensmeyer 1978;Mikulás 1999Mikulás , 2001Fernández-Jalvo et al 2002;Tjelldén et al 2016;Paes-Neto et al 2018). These types of alterations are well known in both archaeological and palaeontological contexts (Mikulás 2001;Fernández-Jalvo & Andrews 2016).…”

Section: Discussionmentioning

confidence: 99%

Recurring taphonomic processes in the carnivoran‐dominated Late Miocene assemblages of Batallones‐3, Madrid Basin, Spain

Martín-Perea

Domingo

Cantero

et al. 2021

LET

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Carnivoran-dominated fossil sites are scarce in the fossil record but provide precious information on the diversity and ecology of past carnivoran guilds. The Cerro de los Batallones sites host the oldest carnivoran-dominated assemblages, with the highest carnivoran abundances observed in the fossil record. Batallones-3 (Late Miocene, Madrid Basin, Spain) hosts three discrete, carnivoran-dominated fossiliferous levels deposited in a 15m-diameter, 4m-high pseudokarstic cavity with 1m-high talus cone located beneath the mouth of the cavity on the roof. Levels I, II and III are multitaxic multidominant assemblages, with the sabretooth cats Promegantereon ogygia and Machairodus aphanistus and the ursid Indarctos arctoides being the most abundant species. These carnivoran-dominated assemblages are autochthonous and show diagenetically fractured but well-preserved remains (complete, little to no weathering or abrasion). Root marks and manganese oxide precipitation are common and more abundant in Level III, due to modern pedogenic processes. There are also a few allochthonous, badly preserved (weathered and abraded) herbivore remains that were washed into the cavity. The taphonomic homogeneity of all three levels suggests recurring taphonomic and geologic processes throughout the accumulation of infill in the cave. The trap-like nature of the cave, unbroken and largely unweathered carnivoran bones suggest these predators intentionally jumped into the cave but were unable to escape. □ Batallones-3, carnivoran, mammals, pseudokarst, taphonomy, Vallesian.

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Section: Discussionmentioning

confidence: 99%

Recurring taphonomic processes in the carnivoran‐dominated Late Miocene assemblages of Batallones‐3, Madrid Basin, Spain

Martín-Perea

Domingo

Cantero

et al. 2021

LET

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“…Moreover, the fossil record includes conchostracans, ostracodans, charophytans, molluscs (gastropods and bivalves; e.g. Carbonaro, Rohn, & Ghilardo, 2013; Dias‐Brito et al, 2001; Ghilardi, D'Agosta, Alves, & Arruda‐Campos, 2011) and ichnofossils (e.g., Francischini et al, 2016; Magalhães Ribeiro, 2002; Martinelli et al, 2019; Mineiro & Santucci, 2018; Paes Neto et al, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

Sedimentology of a distributive fluvial system: The Serra da Galga Formation, a new lithostratigraphic unit (Upper Cretaceous, Bauru Basin, Brazil)

et al. 2020

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The Bauru Basin of SE Brazil is a large (ca. 370,000 km2) Upper Cretaceous intracratonic feature, important for its fossil remains and of particular value as a source of regional palaeoclimatic information. Historically, lithostratigraphic reconstructions have been performed mainly for successions of the central and southern parts of the basin, resulting in a lithostratigraphic scheme that is not applicable to the northernmost regions. In particular, the northeastern deposits of the Marília Formation (Serra da Galga and Ponte Alta members) reveal lithological, stratigraphic, and palaeontological differences from southeastern and northwestern counterparts (Echaporã Member). Nevertheless, these deposits are considered as a single lithostratigraphic formation in the literature. To address this problem, this study demonstrates how the northeastern deposits of the Marília Formation do not show affinity to the rest of the unit. A more suitable lithostratigraphic model is proposed for the northeastern succession as a distinct and independent unit. Lithofacies and palaeopedological analysis, combined with lithostratigraphic mapping of the northeastern deposits, reveal 11 distinct lithofacies and three pedotypes over an area of ~450 km2. Sedimentary facies and pedotypes were assigned to six interbedded architectural elements: (a) type 1 channel fill, (b) type 2 channel fill, (c) type 3 channel fill, (d) interchannels, (e) palaeosols, and (f) calcrete beds. The succession is interpreted as a distributive fluvial system with overall direction of flow to the NNW, and which developed under the influence of a semiarid climate regime. This contrasts with deposits of the southeastern and northwestern Marília Formation, previously suggested to be of fine‐grained aeolian affinity with interbedded poorly channelised deposits assigned to an aeolian sand sheet environment. By revising the existing lithostratigraphic scheme for the northeastern deposits, and contrasting them with laterally equivalent strata, this work demonstrates how the previously named Serra da Galga and Ponte Alta members reveal a unique set of lithological, architectural, and genetic signatures that permits to separate them from the Marília Formation. Finally, a new lithostratigraphic classification for the unit is proposed: the Serra da Galga Formation, whose deposition relates to an ancient distributive fluvial system.

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Recent Root Damages of Fossilized Vertebrate Remains from New Mexico, USA

Francischini

Lucas

Dentzien‐Dias

et al. 2019

Topics in Geobiology

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Bioerosion traces on titanosaurian sauropod bones from the Upper Cretaceous Marília Formation of Brazil

Cited by 14 publications

References 66 publications

Recurring taphonomic processes in the carnivoran‐dominated Late Miocene assemblages of Batallones‐3, Madrid Basin, Spain

Recurring taphonomic processes in the carnivoran‐dominated Late Miocene assemblages of Batallones‐3, Madrid Basin, Spain

Sedimentology of a distributive fluvial system: The Serra da Galga Formation, a new lithostratigraphic unit (Upper Cretaceous, Bauru Basin, Brazil)

Recent Root Damages of Fossilized Vertebrate Remains from New Mexico, USA

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