Trilobites are one of the most universally recognized fossils. Trilobites roamed the sea floors from
520 million years to 250 million ago. Trilobites were a wonderfully diverse group of arthropods that came in various sizes from less than an inch to several feet in length. Some of them can have a very exotic look to them. This little 1/2 inch trilo is shaped
like a figure 8, comes from Utah and is called Acadagnostus This 2 inch Brown
beauty is from Utah and called Elrathia This is another Elrathia
from Utah in a darker matrix.        This little guy is from
mineral Wells, Texas and is called Ditomopyge This shiny, green, rolled
trilo is from Ohio and called Flexicalymene Retrors.Flexicalymene retrorsaa This is a perfectly rolled
trilo found in Ohio but type unknown |