bioerosion
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Bioerosion — describes the erosion of hard ocean substrates by living organisms by a number of mechanisms. Bioerosion can be caused by mollusks, polychaete worms, phoronids, sponges, crustaceans, echinoids, and fish. It can occur on coastlines, on coral reefs … Wikipedia
Trace fossil — Chirotherium footprints in a Triassic sandstone … Wikipedia
Erosion — is the carrying away or displacement of solids (sediment, soil, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down slope movement in response to gravity or by living organisms (in the case … Wikipedia
Taphonomy — is the study of a decaying organism over time. The term taphonomy, (from the Greek taphos τάφος meaning burial, and nomos νόμος meaning law), was introduced to paleontology in 1940 by Russian scientist, Ivan Efremov, to describe the study of the… … Wikipedia
Trypanites — is a narrow, cylindrical, unbranched boring which is one of the most common trace fossils in hard substrates such as rocks, carbonate hardgrounds and shells (Bromley, 1972). It appears first in the Lower Cambrian (James et al., 1977), was very… … Wikipedia
Entobia — Dans le domaine de la Paléontologie et plus précisément de la Paléoichnologie (étude des traces anciennes de la vie), on appelle Entobia les traces fossiles (anciennes ou récentes) laissées par certaines éponges perforantes dans un substrat dur.… … Wikipédia en Français
Clionaidae — Ne doit pas être confondu avec Clionidae. Clionaidae … Wikipédia en Français
Phoronid — Taxobox name = Phoronids regnum = Animalia superphylum = Lophotrochozoa phylum = Phoronida phylum authority = Hatschek, 1888 subdivision ranks = Genera subdivision = Phoronis Phoronopsis Phoronids ( Phoronida ), commonly known as horseshoe worms … Wikipedia
Fosile — Fossile Ammonite fossilisée … Wikipédia en Français
Fossile — Ammonite fossilisée … Wikipédia en Français
