INTRODUCTION The iterative evolution of secondarily marine tetrapods since the Paleozoic
offers the promise of better understanding how the anatomy and ecology of animals change …

The East Pisco Basin is one of the forearc basins that formed during the Cenozoic along the
coast of Peru due to the subduction of the Farrallon-Nazca plate beneath the South …

The highly productive waters of the Humboldt Current System (HCS) host a particular
temperate ecosystem within the tropics, whose history is still largely unknown. The Pisco …

Several dolphin lineages have independently invaded freshwater systems. Among these,
the evolution of the South Asian river dolphin Platanista and its relatives (Platanistidae) …

The three extant sperm whale species, the giant Physeter macrocephalus and the diminutive
Kogia species, are relict members of the superfamily Physeteroidea, whose evolutionary …

New age estimates obtained via Strontium Isotope (87 Sr/86 Sr) Stratigraphy and new
paleoclimatic data are here presented for the Miocene Chilcatay and Pisco formations …

The killer whale (Orcinus orca) and false killer whale (Pseudorca crassidens) are the only
extant cetaceans that hunt other marine mammals, with pods of the former routinely preying …

The northward-flowing Humboldt Current hosts perpetually high levels of productivity along
the western coast of South America. Here, we aim to elucidate the deep-time history of this …

The sequence stratigraphic framework and a summary of the fossil fauna of the Upper
Miocene portion of the Pisco Formation exposed along the western side of the Ica River …

Background Unlike most mammals, toothed whale (Odontoceti) skulls lack symmetry in the
nasal and facial (nasofacial) region. This asymmetry is hypothesised to relate to …