The geographic distribution of brachiopod genus occurrences over the Phanerozoic shows that secular declines in origination and extinction rates were paralleled by increases in invasion and ...

Hydrosphere interactions and alteration of the terrestrial crust likely played a critical role in shaping Earth’s surface, and in promoting prebiotic reactions leading to life, before 4.03 Ga (the ...

The start of the Phanerozoic Eon 540 million years ago is marked by the Cambrian Explosion, a point in time when complex, hard-shelled organisms first appeared in the fossil record. Although ...

Recent methodological advances in the analysis of the fossil record and in the estimation of diversification rates from molecular phylogenies have enabled the refinement of global diversity curves 1,2 ...

With the economy, we talk about cycles of boom and bust. Make that "bust and boom" when it comes to the geological record in the post-Paleozoic world, University of Cincinnati geologist Arnold Miller ...

For the first time since 1891, the geologic timescale is getting a new period. In March the International Union of Geological Scientists added the Ediacaran Period to the Precambrian Eon, an enormous ...

A view of one part of the Paleontology collection in the Museum of Natural History, arranged by the addition of representative specimens from other parts of the three floors of fossils in the East ...