Morphological evolution of the cave bear (Ursus spelaeus) mandibular molars: coordinated size and shape changes through the Scladina Cave chronostratigraphy

Charters, Daniel; Brown, Richard P.; Abrams, Grégory; Bonjean, Dominique; Groote, Isabelle De; Meloro, Carlo

doi:10.1016/j.palaeo.2021.110787

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2024

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Cited by 2 publications

References 95 publications

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Mandibular ecomorphology in the genus ursus (Ursidae, Carnivora): relevance for the palaeoecological adaptations of cave bears ( U. spelaeus ) from Scladina cave

Charters,

Brown,

Abrams

et al. 2024

Historical Biology

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Mandibular ecomorphology in the genus ursus (Ursidae, Carnivora): relevance for the palaeoecological adaptations of cave bears ( U. spelaeus ) from Scladina cave

Charters,

Brown,

Abrams

et al. 2024

Historical Biology

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ClassiCOL: LC-MS/MS analysis for ancient species Classification via Collagen peptide ambiguation

Engels,

Burnett,

Robert

et al. 2024

Preprint

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LC-MS/MS extends on the MALDI-TOF ZooMS approach by providing fragmentation spectra for each peptide. However, ancient bone samples generate sparse datasets containing only a few collagen proteins, rendering target-decoy strategies unusable and increasing uncertainty in peptide annotation. ClassiCOL embraces and even extends this ambiguity using a novel isoBLAST approach. The exhaustive set of potential peptide candidates created in this way is then used to retain or reject different potential paths at each taxonomic branching point down to the taxonomic level attainable with the sample information, always allowing for potential mixtures in the process. As an end point, all considered ambiguity is graphically represented with a clear prioritization of the species in the sample. Using public as well as in-house data, we demonstrate the performance of this universal postprocessing approach on different instruments and explore the possibility of identifying genetic as well as sample mixtures. Diet reconstruction from 40,000 year old cave hyena coprolites illustrates the exciting potential of this approach.

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Morphological evolution of the cave bear (Ursus spelaeus) mandibular molars: coordinated size and shape changes through the Scladina Cave chronostratigraphy

Cited by 2 publications

References 95 publications

Mandibular ecomorphology in the genus ursus (Ursidae, Carnivora): relevance for the palaeoecological adaptations of cave bears ( U. spelaeus ) from Scladina cave

Mandibular ecomorphology in the genus ursus (Ursidae, Carnivora): relevance for the palaeoecological adaptations of cave bears ( U. spelaeus ) from Scladina cave

ClassiCOL: LC-MS/MS analysis for ancient species Classification via Collagen peptide ambiguation

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