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Bat Green River Formation - I have dug at the Green River Formation, (Wyoming) many times....Love it!!

This inch long bat is the most primitive bat known (Eocene Green River Fm). Claws on each finger of its wings indicate it was probably an agile climber and crawled along and under tree branches searching for insects.

A fossil of an orb-weaving spider.

The biggest known fossil spider has been found in China, a new study says. Measuring nearly 1 inch centimeters) in length, the fossil was uncovered in 2005 by farmers in Inner Mongolia. I spiders too and this one is too damned big.

Cheezburger.com - Crafted from the finest Internets.

The Sabertooth Tiger Was Awesome

The Sabertooth Tiger Was Awesome.so awesome I got one tattooed on me.

Réplique de Sinornithosaurus, surnommé "Dave", NGMC 91, American Museum of Natural History, New York. Dinosauria, Saurischia, Theropoda, Coelurosauria, Maniraptora, Deinonychosauria, Dromaeosauridae. Auteur : Dinoguy2.

Cast of the fossil dromaeosaur specimen NGMC 91 (nicknamed "Dave", cf. Sinornithosaurus), at the American Museum of Natural History in New York. He looks like he's questioning something

Archaeopteryx fossil

Evolutionary biology is an extensive interest of mine. This fossil of Archaeopteryx proves the developmental transition of feathered dinosaurs to modern birds.

Fossil Eocene bird 48 million years old |!!!  Messei Museum ,Southern Germany !!! Flickr !!

Look closely at this 48 million year old fossil, is it a bird or a dinosaur? Has the body of a bird but the face of a dinosaur, a clear transitional species

Dinosaur tail fossil | Archaeopteryx Fossil, most primitive bird known

Archaeopteryx Berlin specimen is considered the most famous fossil in the world. It is about 150 Ma & was discovered in limestone deposits in Eichstaett, Bavaria. Archaeopteryx has bird flight feathers, but also has reptile features such as a tail bone &

Eurypterid fossil

Eurypterid (sea scorpions) are an extinct group of arthropods related to arachnids which include the largest known arthropods that ever lived. Largest fossil in this group ever found about 8 ft.

Turtle fossil ~K~ Still a TURTLE ! Not a part turtle/part bird, or part lizard, or part frog !

Turtle fossil from the Jurassic deposits of Solnhofen, Germany.