Eocene Green River Bird Feather VF-PCM-16-015 Crinoid they often have perfectly preserved

they often have perfectly preserved original aragonite shell that displays fabulous iridescence

formidabilis is particularly well-known

Here is a tooth of the Jurassic crocodile Amphicotylus

sinensis from China where it is widely distributed in temperate to subtropical floras

The Fabaceae

Eocene Green River Bird Feather VF-PCM-16-015 Crinoid they often have perfectly preservedBird Feather Green River Formation Parachute Creek Member Middle Eocene Uintah County, Utah This specimen is a really good, fossilized bird feather from the Green River Formation. The feather has excellent detail even though it was a bit ruffled during fossilization. Even though the Green River Formation is most well known for its fossil fishes, in terms of biological diversity the Eocene birds that lived around the ancient lake were a more diverse