pacificus found in coprolites
were from the coastal site of Los Gavilanes in Peru, dated from 2850 to 2700 bce (7), and from the site of Tiliviche in northern Chile (Iquique), with Chinchorro culture dating from 4110 to 1950 bce (8) (Figure 1).
The 'fire-spot' in the middle of this sample contains fragments of embedded herbivore dung that form discontinuous layers with fine-grained aggregate lenses, disaggregated omnivore coprolites
and digested bone fragments.
Critics also questioned whether or not younger DNA could have been washed down through the cave's sediments, thereby contaminating non-human coprolites
with more recent human DNA.
The afternoon's activity is to break open the coprolites
and discover what secrets lurk inside - pieces of eggshell, seeds and other undigested matter that can tell archaeologists how the people of the past lived.
The medium to dark gray or light-gray to brown coprolites
range from 2 to 30 mm in length and vary in shape (spherical to elongate to irregular).
containing ammonoids from the Devonian of New York.
Each piece of fossilized dung, called a coprolite
, was shaped like a sphere and measured up to 10 centimeters (4 inches) across.
rex," says Karen Chin, a paleobiologist (scientist studying prehistoric life) who specializes in coprolites
(the polite name for dinosaur droppings) are highly prized among scientists who can grind them up into a fine dust to establish what the dinosaur ate before being caught short
Diet Change in the Lower Pecos: Analysis of Baker Cave Coprolites
The use of pollen from hyaena coprolites
for the reconstruction of past vegetation (M.
Materials excavated at the site indicate extensive use, including approximately 45 000 Early Horizon pottery sherds, 220kg of shell remains and human coprolites
, among other materials from over 500[m.