Saber-tooth Cat Tooth

Picture of a display at the Red Rock Canyon State park in California, USA as of October 2013. It shows a tooth and part of the jaw from a saber tooth cat and in the background is a cougar skull for comparison. The fossils are from the late Miocene and were found in the Dove Spring Formation.

Learn more about fossils from this area: http://inyo.coffeecup.com/site/redrock/redrockfossils.html

Thanks to Kenny for the picture.

Cryptolithus tessellates Trilobites

Here are some pictures of the lace collar sections of the Cryptolithus tessellates (Green 1832) trilobite fossils. They were on display at the Cincinnati Museum of Natural History and Science in Ohio, USA (as of August 2013). The trilobites existed in the Ordovician Period and are found in the Edenian Stage of the Cincinnatian Series.

The genus was named by Jacob Green in 1832 Synopsis of the trilobites of North America. Monthly American Journal of Geology and Natural History, 1(12):558–560. . This trilobite was known by the name Trinucleus concentricus in other earlier works.

If there had been internal remnants of a trilobite it might have looked something like from below. It is a drawing done back in 1920 by Dr. Elvira Wood of the Cryptolithus tessellates (Green 1832).

Source:

https://www.gutenberg.org/files/41695/41695-h/41695-h.htm

Ankylosaurus Dinosaur Replica

This pictures show a dinosaur replica of an Ankylosaurus. The model is about 5 meters in length. Its name means "fused lizard" which relates to the armored connected plates on its body. Dinosaurs like this existed about 70 million years ago in the Cretaceous Period. They were found in what is modern day Montana, USA and Alberta, Canada.

When these pictures were taken the model was on display at Cincinnati Museum of Natural History and Science as of August 2013.