Dendroolithus (Hadrosaur Dinosaur Egg) Troodon Gallinuloides wyomingensis was found in

Gallinuloides wyomingensis was found in the fine-grained limestone layers of the Eocene Epoch

Many Mazon Creek jellyfish specimens do not have many diagnostic features

The first scientifically recognized dinosaur egg fossils were discovered in 1923 by Roy Chapman Andrews and his American Museum of Natural History expedition to Mongolia

Many fossils of this species

Dendroolithus (Hadrosaur Dinosaur Egg) Troodon Gallinuloides wyomingensis was found inDendroolithus is genus of dinosaur egg native to China and Mongolia. This type of egg is believed to have been laid by a Hadrosaur or duckbilled dinosaur. The original egg was found in China and is from the Cretaceous time period of about 100 million years ago. This replica egg is molded and cast from the original egg. The first dinosaur eggs were discovered in southern France in 1859, by a Catholic priest and amateur naturalist named Father Jean