Large predators are overabundant in mid-Cretaceous continental dinosaur assemblages of
North Africa. Such unbalanced ecosystem structure involves, among predatory dinosaurs …

Abstract The Cretaceous–Paleogene (K–Pg) transition saw mass extinctions in terrestrial
and marine ecosystems. Terrestrial vertebrate diversity patterns across the K–Pg boundary …

Diet is a major driver of hominin evolution, but most of the geochemical evidence relies on
carbon isotopes (δ13C). Here, we report enamel stable calcium isotope (δ44/42Ca) values …

Abstract In the Late Cretaceous, northern and southern hemispheres evolved distinct
dinosaurian faunas. Titanosaurians and abelisaurids dominated the Gondwanan continents; …

Measurements of modern bone and tooth enamel show that calcium stable isotopes (δ 44
Ca), zinc (δ 66 Zn), and strontium (δ 88 Sr) have great potential as ecological and dietary …

Beyond their established uses in Earth and Planetary sciences, calcium (Ca) isotopes have
a promising future in the study of the biology of present and past vertebrates, including …

Isotopes in fossil tooth enamel provide robust tools for reconstructing food webs, which have
been understudied in Australian megafauna. To delineate the isotopic composition of …

Abstract The Upper Maastrichtian of Morocco has produced a remarkably diverse fauna of
mosasaurids, the most diverse known for any time or place. As apex predators …

Nursing is pivotal in the social and biological evolution of hominins, but to date, early-life
behavior among hominin lineages is a matter of debate. The calcium isotopic compositions …

Calcium isotope analyses show a depletion of heavy calcium isotopes in vertebrates,
compared to food sources along each trophic step. Recent studies show considerable …