Evolution of the sabertooth mandible: A deadly ecomorphological specialization

  title={Evolution of the sabertooth mandible: A deadly ecomorphological specialization},
  author={Paolo Piras and Daniele Silvestro and Francesco Carotenuto and Silvia Castiglione and Anastassios Kotsakis and Leonardo Maiorino and Marina Melchionna and Alessandro Mondanaro and Gabriele Sansalone and Carmela Serio and Vittoria Vero and Pasquale Raia},
  journal={Palaeogeography, Palaeoclimatology, Palaeoecology},
  • P. PirasD. Silvestro P. Raia
  • Published 1 May 2018
  • Geography, Environmental Science
  • Palaeogeography, Palaeoclimatology, Palaeoecology

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A suite of biomechanical simulations are used to analyse key functional parameters (mandibular gape angle, bending strength, bite force) to compare the functional performance of different groups and to quantify evolutionary rates across sabre-tooth vertebrates.

How Many Sabertooths? Reevaluating the Number of Carnivoran Sabertooth Lineages with Total-Evidence Bayesian Techniques and a Novel Origin of the Miocene Nimravidae

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Quantitative Analyses of Feliform Humeri Reveal the Existence of a Very Large Cat in North America During the Miocene

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Cranial disparity versus diversity in sabertoothed felids: a case of late morphospace saturation

The first diversity (number of taxa) versus disparity (explored morphospace) comparison of sabertoothed felids performed on craniomandibular and dental characters indicates that in machairodont felids real morphospace stabilization is never achieved until the Pleistocene.

Iterative evolution of large-bodied hypercarnivory in canids benefits species but not clades

The effect of body size and dietary specialization on extinction regimes in North American Canidae is analysed and it is found that hypercarnivory, which evolved independently multiple times, does not increase species-level extinction but is associated with extinctions of clades.

Selection and Constraints in the Ecomorphological Adaptive Evolution of the Skull of Living Canidae (Carnivora, Mammalia)

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Eomakhaira molossus, A New Saber-Toothed Sparassodont (Metatheria: Thylacosmilinae) from the Early Oligocene (?Tinguirirican) Cachapoal Locality, Andean Main Range, Chile

The occurrence of Eomakhaira in strata of early Oligocene age from the Chilean Andes demonstrates that the stratigraphic range of thylacosmilines spanned almost 30 million years, far surpassing those of saber-toothed placental lineages.



Long in the tooth: evolution of sabertooth cat cranial shape

Within each sabertooth lineage, skull shape is significantly correlated with canine length, suggesting that gape-related demands drove the evolution of saberteeth skull morphology.

Evolution of Skull and Mandible Shape in Cats (Carnivora: Felidae)

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Canine Evolution in Sabretoothed Carnivores: Natural Selection or Sexual Selection?

Scaling relationships indicate the probable importance of sexual selection in the evolution of the hypertrophied sabretooth anterior dentition.

Déjà vu: the evolution of feeding morphologies in the Carnivora

A survey of the fossil record indicates that large hypercarnivores evolve frequently, often in response to ecological opportunity afforded by the decline or extinction of previously dominant hyperc Carnivorous taxa.

Ecological Adaptations of Mandibular Form in Fissiped Carnivora

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Evolutionary convergence of primitive sabertooth craniomandibular morphology: the clouded leopard (Neofelis nebulosa) and Paramachairodus ogygia compared

Comparison of craniomandibular morphology of the extant clouded leopard Neofelis nebulosa and Paramachairodus reveals numerous similarities and subsequent divergence from other extant great cats.

Sabertooth characters in the clouded leopard (Neofelis nebulosa Griffiths 1821)

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