The extinction of the dinosaurs marked the end of one era but heralded the beginning of another. It only took the Earth a few million years to recover from the aftereffects of the asteroid impact, but it was a changed world.

The Eocene epoch was the largest single stretch of the Cenozoic Era, accounting for over 20 million years.

Supported with a five-year, $580,000 award from the National Science Foundation, scientists from the University of Kansas are departing this month to investigate how climate, plate tectonics and other factors influenced evolution by bringing species together in modern-day Turkey 42 million years ago during the Eocene epoch.

Teilhardina magnoliana, sp. nov. Reconstruction Abstract Undoubted primates first appear almost synchronously in the fossil records of Asia, Europe, and North America. This temporal pattern has complicated efforts to reconstruct the early dispersal history of primates in relation to global climate change and eustatic fluctuations in sea level. Here, I describe fossils from the Tuscahoma Formation on the Gulf Coastal Plain of Mississippi documenting an anatomically primitive species of Teilhardina that is older than other North American and European primates. Consistent with its antiquity, a phylogenetic analysis of dental characters recognizes Teilhardina magnoliana, sp. nov., as the most basal member of this genus currently known from either North America or Europe. Its stratigraphic provenance demonstrates that primates originally colonized North America near the base of the Paleocene–Eocene Thermal Maximum (PETM), but before an important fall in eustatic sea level. Correlation based on carbon isotope stratigraphy and sequence stratigraphy indicates that the earliest North American primates inhabited coastal regions of the continent for thousands of years before they were able to colonize the Rocky Mountain Interior. The transient provincialism displayed by early North American primates corresponds to similar biogeographic patterns noted among fossil plants. Decreased precipitation in the Rocky Mountain Interior during the early part of the PETM may have been an important factor in maintaining biotic provincialism within North America at this time. These results underscore the need to obtain multiple, geographically dispersed records bearing on significant macroevolutionary events such as the PETM. Key words: Teilhardina Wasatchian dispersal phylogeny Omomyidae Systematic Paleontology Primates Linnaeus, 1758. Omomyidae Trouessart, 1879. Teilhardina Simpson, 1940. Teilhardina magnoliana, sp. nov. Etymology. For Mississippi, the Magnolia State. Holotype. Carnegie Museum of Natural History (CM) 70435, an isolated left M2 (Fig. 1). Type Locality. CM locality 517, uppermost part of the Tuscahoma Formation, Lauderdale County, MS. Fig. 1. Composite partial dentition of Teilhardina magnoliana from the Tuscahoma Formation (earliest Eocene), Gulf Coastal Plain of Mississippi. Beard, K.C. 2008. The oldest North American primate and mammalian biogeography during the Paleocene-Eocene Thermal Maximum. Proceedings of the National Academy of Sciences. 105 (10): 3815. doi:10.1073/pnas.0710180105. Pint-Sized Primates Were First in North America http://www.livescience.com/2343-pint-sized-primates-north-america.html

Otodus Obliquus is undoubtedly one of the best known of the large lamnids, (the largest from the Upper Paleocene to the Lower Eocene), knowledge occasioned by the intensive exploitation of the phosphate deposits of Khouribga in Morocco. The animal must have reached 6 meters and more (because a few teeth, quite rare, of large sizes presume larger dimensions), and given the number of fossil teeth found in Morocco, this shark must have been common at that time. This is not quite the case in the other Ypresian deposits of the Globe, where it is considered uncommon, even rare (in France and England for example)… As for the teeth of this paleo-squale, they were robust, without serrations, but with lingual padding, and more or less triangular lateral cusps, depending on the geological age of the animal, in the Paleocene (Danian) the cusps are simple and very triangular, in the Eocene (Ypresian) there is, in addition, the presence of a small more or less marked secondary lateral cusp… Note that the anterior teeth are a little wider in the Paleocene than those of the Eocene specimens. size : 2.5 inches you will receive the same tooth in the picture or a 90% similar one in size and quality combined shipping is possible

Eocene Park -- Choose from our vast selection of art prints and posters to match with your desired size to make the perfect print or poster. Pick your favorite: Movies, TV Shows, Art, and so much more! Available in mini, small, medium, large, and extra-large depending on the design. For men, women, and children. Perfect for decoration.

Rhodochrosite

Weathering is the wearing down or breaking of rocks while they are in place. Weathering can be biological, chemical or physical.