Musca ascrides

 
scale in cms

CLASS - Insecta
ORDER - Diptera
FAMILY -Muscidae
GENUS/SPECIES - Musca ascrides

ROCK UNIT - Evacuation Creek Member, Green River Formation

AGE - Eocene Epoch ( 48 million years old)

LOCALITY - Uinta Co., Utah, USA

These fossils represent large, aquatic fly larvae. As one can see, whole layers of the Green River Formation are covered with just one type of larvae. These were apparently opportunistic species which fed on the leaf litter found at the bottom of lakes.

Take a closer look.

PRI 40775