Fossils of Juvenile Crinoid Holdfasts (IMAGE)
Caption
Holdfasts from very young crinoids that lived 450 million years ago, fossilized in iron oxide. An international team of researchers discovered the tiny fossils, measuring one to four millimeters across, in rock exposed by World War I trenches dug in the Alps.
Credit
Image courtesy of The Ohio State University.
Usage Restrictions
None
License
Licensed content