This classification of coprolite gets its name from the Greek words,
Reference: Hunt, A. P., Lucas, S. G., Spielmann, J. A. & Lerner, A. J. (2007): A review of vertebrate coprolites of the Triassic with descriptions of new Mesozoic ichnotaxa. - New Mexico Museum of Natural History and Science, Bulletin, 41: 88-107.
We have yet to identify what creature created this furrowed coprolite. Although size and configuration vary somewhat, sphincter sculptures with longitudinal striations such as these have been found in sediments that were once part of fresh water stream environments dating from the Permian through the end of the Cretaceous.
We don't know what creature created this furrowed coprolite. Although size and configuration vary somewhat, sphincter sculptures with striations have been found in sediments that were once part of fresh water stream environments dating from the Permian through the end of the Cretaceous. Most furrowed coprolites do not have inclusions. This one is unique in that it contains tiny little fish bone and scale inclusions.
Some of the most interesting fossil poo can be found in New Mexico. While there are no visible inclusions, this coprolite does have some interesting surface features. Longitudinal striations, or furrows, can be seen under magnification. These were likely left by the creatures sphincter.
This little furrowed coprolite is perched on the edge of its supporting matrix. It must have been a crappy neighborhood, because it looks like other, less desirable coprolites occupy the same matrix. There are no inclusions visible on any of the coprolites on this matrix.
