Oxygen isotopes data enable researchers to look far back into the geologic past and reconstruct the climate of the past. In ...

Fossils from fluvial deposits of early Oligocene age in Egypt document the earliest known diverse avifauna from Africa, comprising at least 13 families and 18 species. Included are the oldest fossil ...

Ecological reconstruction of giant rhinos and their accompanying fauna in the Linxia Basin during the Oligocene. (Chen Yu) About 25 million years ago, giant rhinos more than 16 feet tall roamed the ...

The bryozoan genus Aspidostoma Hincks, 1881 has been regarded as the only representative of the Aspidostomatidae Jullien, 1888 in Argentina to date. Its type species, Aspidostoma giganteum (Busk, 1854 ...

A new study asks: What are the unique chemical and geological processes at Aix-en-Provence that preserve spiders from the Oligocene Period so exquisitely? A geologic formation near Aix-en-Provence, ...

A batch of newly discovered fossils come from prehistoric giant rhinos — the largest known land mammal in the history of the Earth. Paleontologists discovered a complete skull from one rhino and three ...

Ecological reconstruction of giant rhinos and their accompanying fauna in northwest China during the Oligocene. The giant rhino, genus Paraceratherium, was a hornless, long-necked herbivore living in ...

An exposed prehistoric seafloor is a hotspot for relics, and now an international team is helping unravel their mysteries Devon Bidal, Hakai Nick Pyenson, the Smithsonian Institution’s curator of ...

Two new genera and species of spikefishes from the Menilitic Formation (late Tethys Sea) of the Upper Oligocene of Poland represent the first fossils of the two subfamilies of the tetraodontiform ...