Instead, things like ammonites or corals are the most common fossils; and of course, crinoids are a coveted find. Crinoids are often referred to as “sea lilies” even though they’re ...

Fieser, L. F., and Fieser, M., Natural Products Related to Phenanthrene (third ed.), 204 (Reinhold, New York, 1949). Fieser, L. F., and Fieser, M., Steroids, 177 ...

“My reaction was surprise.” An examination of the cleaned-up fossil revealed that it was a regurgitated meal consisting of the two crinoids, a relative of the modern-day sea starfish. Experts ...