1/4 lb of Fossilized Crinoid Stems from Morocco

1/4 lb of Fossilized Crinoid Stems from Morocco

$12.99

Shipping to United States: Free

Cobble Creek: 1/4 lb of Fossilized Crinoid Stems from Morocco

Each fossilized crinoid stem ranges from 1/4" to 2" inches in length on average. Each quarter pound will be selected at random from our bulk fossil bin. Anywhere from 40 - 60 pieces are included in each quarter pound.
Great hands on fossil for the entire science class!


From Wikipedia:
https://en.wikipedia.org/wiki/Crinoid#Fossils

Some fossil crinoids, such as Pentacrinites, seem to have lived attached to floating driftwood and complete colonies are often found. Sometimes this driftwood would become waterlogged and sink to the bottom, taking the attached crinoids with it. The stem of Pentacrinites can be several metres long. Modern relatives of Pentacrinites live in gentle currents attached to rocks by the end of their stem. The largest fossil crinoid on record had a stem 40 m (130 ft) in length.[23]

In 2012, three geologists reported they had isolated complex organic molecules from 340-million-year-old (Mississippian) fossils of multiple species of crinoids. Identified as "resembl[ing ...] aromatic or polyaromatic quinones", these are the oldest molecules to be definitively associated with particular individual fossils, as they are believed to have been sealed inside ossicle pores by precipitated calcite during the fossilization process.[24]

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