baculite


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baculite

(ˈbækjʊˌlaɪt)
n
an extinct species of mollusc from the Late Cretaceous period, fossils of which have been found ranging from 7cm to 2m in length
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Phil Woods, A Small Grace, poetry, Baculite Publishing Company, $15.
The word has the same root as Bacillus (a genus of bacterium) and Baculites (a genus of extinct marine "shellfish"), which have rod-like shapes.
This particular specimen, of the genus Baculites, dates to between 70 million and 83 million years ago.