23. What mode(s) of preservation is this (pay attention to the holes!)? What kind(s) of organisms are fossilized here? 24. These are fossils of the same kind of organism, a crinoid. Crinoids are very ...

Fossils formed when an animal's shell or other hard structure is buried without being ... American Indians used chert for tools and weapons. Crinoids are marine animals that look like flowers. It has ...

Dr Neil Clark, a real life palaeontologist, shows a range of fossils including colonial coral found in equatorial regions, crinoids which are sea lilies still alive today and orthocones (related ...

Crinoids. The horn-shaped ones? Horn corals. What’s cool is you can walk directly on the fossil beds when the river levels are low, which is most common in late summer and early fall.