The origin and processes creating the high diversity of plant species in neotropical rain forests and their floristic composition and multistratitified forest structure are still uncertain. Here, we studied one of the most common leaf morphotypes of the Cerrejón flora (middle-late Paleocene, ca. 60-58 Ma), Guajira, Colombia, that contains one of the oldest records of neotropical rain forest flo...

Deltatheroidans are primitive metatherian mammals (relatives of marsupials), previously thought to have become extinct during the Cretaceous mass extinction. Here, we report a tiny new deltatheroidan mammal (Gurbanodelta kara gen. et sp. nov.) discovered at the South Gobi locality in China (Xinjiang Province) that is the first Cenozoic record of this clade and renders Deltatheroida a Lazarus ta...

The Campo section in the Spanish Pyrenees is classical for shallow-water Paleocene-Eocene Thermal Maximum (PETM) studies. Despite extensive work last decades, stratigraphic location of onset negative carbon isotope excursion (CIE), and hence Paleocene/Eocene (P/E) boundary, remains a matter considerable debate section. Here we present new biostratigraphic, sedimentological carbon-isotopic data ...

Fossils are indispensible in understanding the evolutionary origins of the modern fauna. Crown-group spadefoot toads (Anura: Pelobatoidea) are the best-known fossorial frog clade to inhabit arid environments, with species utilizing a characteristic bony spade on their foot for burrowing. Endemic to the Northern Hemisphere, they are distributed across the Holarctic except East Asia. Here we repo...

The Late Cretaceous-Early Paleocene Shiranish and Aliji formations have been studied in three selected wells Jambur Oil Field (Ja-50, Ja-53, Ja-67) Kirkuk, Northeastern Iraq. This study included lithostratigraphy biostratigraphy. Campanian-Maastrichtian Formation consist mainly of thin marly chalky limestone beds overlain by marl beds, with some representing an outer shelf basinal environment, ...

Abstract In Egypt, Wadi Qena Middle Eastern Desert, Paleogene successions exposed at Hawashiya and Abu Had sections from north to south were measured comprehensively investigated for their foraminiferal content. The Dakhla, Tarawan, Esna formations make up the sections. studied are subdivided into six biozones; they five zones of Late Paleocene ( Igorina albeari subzone (P3b), G. Globanomalina ...