National Museum of Natural History of the National Academy of Sciences of Ukraine

Reassessment of Miocene putative coprolites from Poland suggests a biogenic origin and probable squamate (reptilian) producers

Additional ferruginous excrement-shaped masses interpreted as putative coprolites were recovered from Miocene deposits of the Kleszczów Graben, central Poland. Earlier studies favored an abiotic origin, but our reassessment provides evidence supporting a biogenic interpretation....