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Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends. Another term, "zone fossil", is used when the fossil has all the characters stated above except wide geographical distribution; thus, they correlate the surrounding rock to a biozone rather than a specific time period.
Pages in category "Fossils of Canada" The following 200 pages are in this category, out of approximately 215 total. This list may not reflect recent changes.
Republic, Washington, area fossils were first reported by Joseph Umpleby (1910), based on fish he collected near the Tom Thumb mine, and given a tentative late Miocene age. [12] Two of the fish were figured and briefly mentioned 7 years later by Charles R. Eastman , who assigned them tentatively to "Amyzon" brevipinne , making one of the early ...
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This list of fossil sites is a worldwide list of localities known well for the presence of fossils. Some entries in this list are notable for a single, unique find, while others are notable for the large number of fossils found there. Many of the entries in this list are considered Lagerstätten (sedimentary deposits
This animal was a filter feeder, using its lophophore to extract organic matter from passing seawater. The soft bodied fossils of this genus were important in establishing hyoliths as possible members of the lophophorata alongside brachiopods and bryozoans. Fuxianospira: A filamentous fossil considered either to represent an alga or a coprolite ...
The fossils of the Burgess Shale, like the Burgess Shale itself, are fossils that formed around 505 million years ago in the mid-Cambrian period. They were discovered in Canada in 1886, and Charles Doolittle Walcott collected over 65,000 specimens in a series of field trips up to the alpine site from 1909 to 1924. After a period of neglect from ...
This article contains a list of fossil-bearing stratigraphic units in the state of Washington, U.S. Sites. Group or Formation Period