Sedimentological studies of ancient fluvial systems commonly do not consider in detail palaeosols floodplain deposits. This is the case upper Paleocene Esplugafreda Formation (Pyrenees, Spain), a 100–340 m thick alluvial succession, which represent more than 80% its thickness. unit closely predates climate crisis Paleocene/Eocene transition, PETM (Paleocene/Eocene Thermal Maximum). The purpose ...

In order to decipher the paleo-depositional environments, during Late Jurassic Early Eocene syn-rift stage, at margins of Ionian basin, two different areas with exposed long sequences have been selected, Kastos Island (external margin) and Araxos peninsula (internal margin), were examined by means microfacies analysis biostratigraphy. On Island, based on lithological sedimentological features, ...

Changes in fire ecology during warm and cold periods the geological past are important because of their effects on terrestrial ecosystems global carbon cycle. We examined charcoal concentrations Erden Obo section Inner Mongolia to reconstruct evolution wildfire relationship regional vegetation from Late Paleocene through Early Oligocene. Our data show that frequency were relatively high end beg...

The genus Aspidoscopulia previously known from a single Recent representative from the Indonesian Archipelago has been found to have wide West Pacific distribution, being present in large numbers in French and Russian collections. Two new Recent species of this genus, i.e. A. bisymmetrica sp. n. and A. tetrasymmetrica sp. n., are here described and illustrated. The genus is also found to have f...

Deviacer guangxiensis Chen & Manchester sp. nov. is described based on asymmetric samaras from the Oligocene Ningming Formation in Guangxi, South China, representing the first documentation of Deviacer fossils in Asia. The Oligocene species, with relatively large fruits, represents the youngest record of the genus so far known; all other records are from the Paleocene and Eocene, or late Eocene...

The Phytocreneae (Icacinaceae) are a tribe of scrambling shrubs and lianas presently distributed in tropical Africa, Madagascar, and Indo-Malesia. We describe the oldest known fossils of this tribe and provide the first recognition of this group in the Neotropical fossil record based on distinctive fruit remains. Palaeophytocrene piggae sp. nov., from the late Paleocene of western North America...

The widespread assumption that the origin of polar marine faunas is linked to the onset of major global cooling in the Late Eocene-Early Oligocene is being increasingly challenged. The Antarctic fossil record in particular is suggesting that some modern Southern Ocean taxa may have Early Eocene or even Paleocene origins, i.e. well within the Early Cenozoic greenhouse world. A global analysis of...

Plesiadapids are extinct relatives of extant euarchontans (primates, dermopterans, and scandentians), which lived in North America and Europe during the Paleocene and Early Eocene. The only genus of plesiadapid whose species are absent from Paleocene strata is Platychoerops. Further, Platychoerops is the only group found in sediments post-dating the Paleocene-Eocene boundary (PEB) by a substant...