Growth of the first permanent Antarctic ice sheets at the Eocene-Oligocene Transition (EOT), ∼33.7 million years ago, indicates a major climate shift within long-term Cenozoic cooling. The driving mechanisms that set the stage for this glaciation event are not well constrained, however, owing to large uncertainties in temperature reconstructions during the Eocene, especially at lower latitudes....

The marsupial family Diprotodontidae (Diprotodontia, Vombatiformes) is a group of extinct large-bodied (60-2500 kg) wombat-like herbivores that were common and geographically widespread in Cenozoic fossil deposits of Australia and New Guinea. Typically they are regarded to be gregarious, terrestrial quadrupeds and have been likened in body form among placental groups to sheep, rhinoceros and hi...

The hypocone, a cusp added to the primitively triangular upper molar teeth of therian mammals, has evolved convergently > 20 times among mammals during the Cenozoic. Acquisition of the hypocone itself involves little phenotypic change, but subsequent diversification of groups possessing the hypocone may be greatly enhanced. Our analysis of the Cenozoic mammalian radiations, including the Recent...

The pre-Cenozoic bryophyte fossil record is significantly sparser than that of vascular plants or Cenozoic bryophytes. This situation has been traditionally attributed to a hypothesized low preservation potential of the plants. However, instances of excellent pre-Cenozoic bryophyte preservation and the results of experiments simulating fossilization contradict this traditional interpretation, s...

The marine record of ocean lithium isotope composition may provide important information constraining the factors that control continental weathering and how they have varied in the past. However, the equations establishing links between the continental flux of Li to the ocean, the continental Li isotope composition and the ocean Li isotope composition are under-constrained, and their resolutio...

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Citation: Jovane L, Figueiredo JJP, Alves DPV, Iacopini D, Giorgioni M, Vannucchi P, Moura DS, Bezerra FHR, Vital H, Rios ILA and Molina EC (2016) Seismostratigraphy of the Ceará Plateau: Clues to Decipher the Cenozoic Evolution of Brazilian Equatorial Margin. Front. Earth Sci. 4:90. doi: 10.3389/feart.2016.00090 Seismostratigraphy of the Ceará Plateau: Clues to Decipher the Cenozoic Evolution ...

We investigate the evolution of Cenozoic climate and ice volume as evidenced by the oxygen isotopic composition of seawater (NOsw) derived from benthic foraminiferal Mg/Ca ratios to constrain the temperature effect contained in foraminiferal N18O values. We have constructed two benthic foraminiferal Mg/Ca records from intermediate water depth sites (Ocean Drilling Program sites 757 and 689 from...

The turn of the twentieth century began an intense period of paleontological exploration of Patagonia. The field work of Carlos Ameghino in Patagonia, including Gran Barranca, documented in correspondence with his brother Florentino, was central to the discovery of the biostratigraphic sequence of pre-Santacrucian mammalian faunas. The work of the Ameghinos was stimulated by rivalry and benefit...

Three continent-scale ductile shear zones trending N-S are distributed in the southeast margin of Qinghai–Tibet Plateau. Their tectonic deformation and exhumation histories great significance to understanding orogenic processes within continent growth as well expansion mechanism plateau. The Gaoligong zone (GLGSZ) is westernmost near boundary Indian subduction plate less studied than Ailaoshan–...