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The ammonite is 8
Yorktown Formation (Miocene)
indicating development to a capsular fruit
There is an inner row of small lateral nodes or bullae above the umbilical shoulder that begin early on the phragmocone
This mode of preservation is very typical for the locality
Eocene Green River Bird Feather with Insects VF-PCM-16-021 Petrified Wood The ammonite is 8Bird Feather with Insects Green River Formation Parachute Creek Member Middle Eocene Uintah County, Utah This specimen is a small but good fossilized bird feather from the Green River Formation. The feather has excellent detail. The feather is about 1 cm long. Also seen on this specimen are a variety of fossil insects including several beetles (Coleoptera), gnat (Sackenia), crane fly (Tipula), and fly (Plecia). Even though the Green River Formation is
