Feather stars (Crinoidea) are one of the prettiest animals in the ocean, coming in a vast array of colors and patterns. These elegant animals are related to starfish and are also 5 sided, despite ...

Invertebrate Paleontology; Carbonate Sedimentology; Paleozoic Coal Swamps; Measuring Mg/Ca ratios of permineralized plants and marine invertebrates (echinoderm crinoids) found in Late Pennsylvanian ...