Los coprolitos (gr. kopros, excremento y lithos, piedra) son heces fosilizadas. Se clasifican en parataxones. Fueron descritos por primera vez en 1829 por William Buckland. Su principal importancia radica en que constituyen pruebas directas de hábitos alimenticios y depredación de especies extintas, especialmente carnívoros ya que resulta más fácil encontrar restos óseos no digeridos que vegetales, (si bien esto no es imposible), estableciendo en muchos casos relaciones directas depredador-presa, que de otra forma sólo son teóricas.

Leer el artículo completo en Wikipedia · CC-BY-SA

A coprolite is fossilized feces. Coprolites are classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour (in this case, diet) rather than morphology. The name is derived from the Greek words κόπρος (kopros, meaning "dung") and λίθος (lithos, meaning "stone"). They were first described by William Buckland in 1829. Prior to this they were known as "fossil fir cones" and "bezoar stones". They serve a valuable purpose in paleontology because they provide direct evidence of the predation and diet of extinct organisms. Coprolites may range in size from a few millimetres to over 60 centimetres. Coprolites, distinct from paleofaeces, are fossilized animal dung. Like other fossils, coprolites have had much of their original composition replaced by mineral deposits such as silicates and calcium carbonates. Paleofaeces, on the other hand, retain much of their original organic composition and can be reconstituted to determine their original chemical properties, though in practice the term coprolite is also used for ancient human faecal material in archaeological contexts. In the same context, there are the urolites, erosions caused by evacuation of liquid wastes and nonliquid urinary secretions.

Leer el artículo completo en Wikipedia · CC-BY-SA