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The trackway Protichnites from the Cambrian, Blackberry Hill, central Wisconsin. A trace fossil, also known as an ichnofossil (/ ˈ ɪ k n oʊ f ɒ s ɪ l /; from Greek: ἴχνος ikhnos "trace, track"), is a fossil record of biological activity by lifeforms but not the preserved remains of the organism itself. [1]
Skolithos in a bed of the Dakota Formation, New Mexico, US. Skolithos (formerly spelled Scolithus or Skolithus [1]) is a common trace fossil ichnogenus that is, or was originally, an approximately vertical cylindrical burrow with a distinct lining. It was produced globally by a variety of organisms, mostly in shallow marine environments, and ...
Like other fossils, coprolites have had much of their original composition replaced by mineral deposits such as silicates and calcium carbonates. Paleofeces, 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 ...
A fossil track or ichnite (Greek "ιχνιον" (ichnion) – a track, trace or footstep) is a fossilized footprint. This is a type of trace fossil. A fossil trackway is a sequence of fossil tracks left by a single organism. Over the years, many ichnites have been found, around the world, giving important clues about the behaviour (and foot ...
A fossil burrow of the Palaeocastor beaver. Burrow fossils are the remains of burrows - holes or tunnels excavated into the ground or seafloor - by animals to create a space suitable for habitation, temporary refuge, or as a byproduct of locomotion preserved in the rock record .
ISBN 0-19-513585-7 and ISBN 978-0-19-513585-5. This text links DNA/RNA analysis to the evolutionary "tree of life" in paleobiology. Donald R. Prothero (2004). Bringing Fossils to Life: An Introduction to Paleobiology. New York: McGraw Hill. ISBN 0-07-366170-8 and ISBN 978-0-07-366170-4. An acclaimed book for the novice fossil-hunter and young ...
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Cruziana from the Devonian Brallier Formation or Harrell Formation.. Cruziana is a trace fossil (fossil records of lifeforms' movement, rather than of the lifeforms themselves) consisting of elongate, bilobed, approximately bilaterally symmetrical burrows, usually preserved along bedding planes, with a sculpture of repeated striations that are mostly oblique to the long dimension.