Niobrara Chalk | Boneblogger: Science and the outdoors

Fossil tells a new tail

Greg — Thu, 09 Sep 2010 02:12:59 +0000

Mosasaurs lived in the world’s oceans during the Late Cretaceous, the last Period from the Age of Dinosaurs (see the geologic time scale). They are close relatives of modern snakes and lizards, and during the Cretaceous they become fully aquatic sea monsters, growing to tremendous sizes, and were the top predators of their environments. Their […]

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My National Geographic moment

Greg — Thu, 10 Jun 2010 15:47:27 +0000

“A photographer from National Geographic wants to talk to you.” These words, or words to those effect, met me as I came into the museum office one day back in 2001, and they definitely caught my attention. It was 2001 and I was Assistant Director of the Sternberg Museum of Natural History. We had just […]

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Niobrara Chalk

Greg — Tue, 09 Mar 2010 21:26:52 +0000

One of the most famous formations is the Niobrara Chalk. This formation is exposed in northwest Kansas and southern Nebraska. Formations are sometimes divided into members, subsections of the formation based upon its rock type. The Niobrara Chalk has two members: the lower Fort Hays Limestone and the upper Smoky Hill Chalk. It is the […]

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Bonnerichthys

Greg — Sun, 21 Feb 2010 23:30:30 +0000

In modern oceans, the very largest organisms specialize in filter feeding, or living on the very small plankton in the water. (Read more about the filter feeding niche). Up until now, it has appeared to researcher that during the Age of Dinosaurs, when the oceans were dominated by large, toothy reptiles, there were no marine […]

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