Abstract The Sirhan-Turayf region in northwestern Saudi Arabia hosts one of the largest
Paleogene phosphate-bearing deposits in the Middle East and forms part of the world's …

Abstract The Late Cretaceous was a time of tremendous global change, as the final stages
of the Age of Dinosaurs were shaped by climate and sea level fluctuations and witness to …

The fossil record provides the only direct evidence of temporal trends in biodiversity over
evolutionary timescales. Studies of biodiversity using the fossil record are, however, largely …

The Algerian sedimentary phosphorites of marine origin are located mainly in the Tébessa
region, which is part of the Eastern Saharan Atlas. These phosphorites are hosted by …

Intra-bone rare earth element (REE) fractionation trends were studied by LA-ICPMS analysis
to put constraints on (1) the mechanisms controlling REE fractionation within fossil bones;(2) …

Fossil bones and teeth are potentially important repository for geochemical proxy data and a
target for radiometric dating. The concentration of many trace elements in bones and teeth …

Abstract Mosasaurs (Squamata, Mosasauridae) were large aquatic reptiles from the Late
Cretaceous that filled a range of ecological niches within marine ecosystems. The type …

Rare earth element (REE) analyses are reported on glauconite-bearing phosphorites from
northeastern Algeria. These rocks of Paleocene-Eocene age are located in the Eastern part …

Fossil bioapatite may yield biogeochemical signals of paleoenvironments captured by living
organisms. Bioapatite may be diagenetically altered, however, with ions added or removed …

Mosasauroids are conventionally conceived of as gigantic, obligatorily aquatic marine
lizards (1000s of specimens from marine deposited rocks) with a cosmopolitan distribution in …