Feeding ecology has shaped the evolution of modern sharks

  title={Feeding ecology has shaped the evolution of modern sharks},
  author={Mohamad Bazzi and Nicol{\'a}s E. Campione and Benjamin P. Kear and Catalina Pimiento and Per Erik Ahlberg},
  journal={Current Biology},

Figures and Tables from this paper

Phylogeny explains capture mortality of sharks and rays in pelagic longline fisheries: a global meta-analytic synthesis

Apex and mesopredators such as elasmobranchs are important for maintaining ocean health and are the focus of conservation efforts to mitigate exposure to fishing and other anthropogenic hazards.


A diverse fish paleofauna occurs in the upper Campanian portion of the Rybushka Formation exposed near Saratov city in the Saratov Oblast, Russia. Twenty taxa have been identified, including two

Heterodonty and ontogenetic shift dynamics in the dentition of the tiger shark Galeocerdo cuvier (Chondrichthyes, Galeocerdidae)

The lifelong tooth replacement in elasmobranch fishes (sharks, rays and skates) has led to the assemblage of a great number of teeth from fossil and extant species, rendering tooth morphology an



Ecological impact of the end-Cretaceous extinction on lamniform sharks

It is shown, using novel morphometric analyses of fossil shark teeth, that the end-Cretaceous extinction of many sharks had major ecological consequences, and quantitative tooth morphometrics can distinguish lamniform sharks due to dietary differences, providing critical insights into ecological consequences of past extinction episodes.

The effect of habitat on modern shark diversification

The new timetree suggests that the two major shark lineages leading to the extant shark diversity began diversifying mostly after the end‐Permian mass extinction: the squalimorphs into deepwater and the galeomorphs into shelf habitats.

Tooth morphology elucidates shark evolution across the end-Cretaceous mass extinction

The results show that selachimorphs maintained virtually static levels of dental disparity in most of their constituent clades across the Cretaceous–Paleogene interval, and selective extinctions did impact apex predator species characterized by triangular blade-like teeth.

Static Dental Disparity and Morphological Turnover in Sharks across the End-Cretaceous Mass Extinction

Climate cooling and clade competition likely drove the decline of lamniform sharks

It is found that the diversity dynamics of lamniforms waxed and waned following repeated cycles of radiation phases and declining phases, implying that the interplay between abiotic and biotic drivers had a substantial role in extinction and speciation, respectively.

An early Miocene extinction in pelagic sharks

Evidence is presented for a previously unknown major extinction event in sharks that occurred in the early Miocene, ~19 million years ago, which led to a reduction in shark diversity and an almost complete loss in total abundance and was a period of rapid, transformative change for open-ocean ecosystems.

Mass extinction in tetraodontiform fishes linked to the Palaeocene–Eocene thermal maximum

  • D. ArcilaJ. C. Tyler
  • Environmental Science, Geography
    Proceedings of the Royal Society B: Biological Sciences
  • 2017
Diversification analyses show distinct diversification dynamics estimated from phylogenies and the fossil record, suggesting that different episodes shaped the evolution of tetraodontiforms during the Cenozoic.

Climate, Critters, and Cetaceans: Cenozoic Drivers of the Evolution of Modern Whales

Based on a comprehensive diversity data set, much of observed cetacean paleodiversity can indeed be explained by diatom diversity in conjunction with variations in climate as indicated by oxygen stable isotope records (δ18O).

‘Fish’ (Actinopterygii and Elasmobranchii) diversification patterns through deep time

  • G. GuinotL. Cavin
  • Environmental Science, Geography
    Biological reviews of the Cambridge Philosophical Society
  • 2016
Results indicate a better fossil record quality for elasmobranchs due to their microfossil‐like fossil distribution and their very low diversity in freshwater systems, whereas freshwater actinopterygians are diverse in this realm with lower preservation potential.