Crappy Housekeeping
Fossil Type:
Location:
South of Glendive
MT
United States
See map: Google Maps
Montana US
Formation:
These fossilized crustacean burrows are lined with pellets. These pellets can have a fecal origin or can be sand/silt cemented with oral secretions (think spit balls). This practice is used by modern ghost shrimp and other crustaceans when building burrows and in soft sediments. These particular specimens don't appear to be lined with coprolite pellets.
Gallery: