Indian bead

{{Short description|Fossilized stem segment of a crinoid}}

Image:Indian bead.png

Indian bead is a colloquial American term for a fossilized stem segment of a columnal crinoid, a marine echinoderm of the class Crinoidea. The fossils, generally a centimeter or less in diameter, tend to be cylindrical with a small hole (either open or filled) along the axis and can resemble unstrung beads. The fossils are abundant in certain areas, including parts of the American Midwest where they are present in gravel. They are sometimes also referred to as "Indian money".{{cite book|last1=Weeden|first1=William Babcock|title=Indian Money as a Factor in New England Civilization|date=1884|publisher=N. Murray, publication agent, Johns Hopkins university|page=410|url=https://books.google.com/books?id=UpcuUqgHfPwC&pg=PA410|accessdate=10 August 2017|language=en}}

The same item is known as Bonifatius pfennige in German ("Saint Boniface pennies") and St Cuthbert's beads in the United Kingdom.

Gallery

File:Fossile-seelilie.jpg|Rare fossil of a crinoid completely intact

File:encrines.jpg|Calcified in limestone

File:Isocrinus nicoleti Encrinite Mt Carmel.jpg|Fossils from the Jurassic period

File:Encrinus liliiformis 180308.jpg|Intact stem of a crinoid, still embedded

File:Crinoid stems.jpg|Small beads shown in comparison to a penny

See also

References

{{commons category|Crinoid beads|Indian beads}}

{{reflist}}

  • [http://www.uky.edu/KGS/fossils/fossilid.htm#b Kentucky Geological Survey: Identifying Unknown Fossils (by their shape)]

Category:Fossil record of animals

Category:Prehistoric crinoids

{{crinoidea-stub}}

de:Seelilien und Haarsterne#Fossile Crinoiden