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| | Trace fossil -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29) |
 | | Trace fossils include (A hole in the ground made by an animal for shelter) burrows, track marks, (additional info and facts about coprolite) coprolites (fossilized feces), (additional info and facts about stromatolite) stromatolites (fossilized algal mounds), and rhizoliths or rhizocretions (fossil remains of roots). |
 | | Trace fossils are formed by organisms performing the functions of their everyday life, such as walking, crawling, burrowing, boring, or feeding. |
 | | Trace fossils are found in abundance even in rocks from the upper part of the (additional info and facts about Vendian) Vendian period, some 550 million years ago and even in Proterozoic (more than 1 billion years ago). |
| www.absoluteastronomy.com /encyclopedia/t/tr/trace_fossil.htm (1487 words) |
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