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 …

With the aim to better understand the timing and geological evolution of the late Cenozoic
stratigraphic record of the onshore, western Valdés Basin in northeast Chubut province …

Platanistoidea remains one of the most evolutionarily intriguing lineages of toothed whales
(Odontoceti). The clade comprises mostly extinct species from the late Oligocene–early …

Records of aquatic mammal fossils (eg cetaceans, pinnipeds, sirenians, mustelids, and
desmostylians) from Latin America (Mexico to Tierra del Fuego, including Antartica) span …

Several aspects of the fascinating evolutionary history of toothed and baleen whales
(Cetacea) are still to be clarified due to the fragmentation and discontinuity (in space and …

Factors affecting cetacean preservation and distribution in ancient sedimentary successions
are not well understood. Actualistic studies have focused on coastal and deep marine …

All extant toothed whales (Cetacea, Odontoceti) are aquatic mammals with homodont
dentitions. Fossil evidence from the late Oligocene suggests a greater diversity of tooth …

Studies involving anatomical description and taxonomy of fossil odontocetes offer insights
into their evolutionary history and diversity. This study analyses tusk-like teeth in …

Abstract Lower Miocene outcrops from Patagonia (Gaiman Formation, Burdigalian) may
reveal more clues for the yet unknown aspects for this period in the evolution of odontocetes …

Prospecting fieldwork in a new fossiliferous locality of the marine Early Miocene Gaiman
Formation (Patagonia, Argentina) results in the discovery of abundant fossil cetaceans (n …