By Joseph “PaleoJoe” Kchodl The Cambrian trilobite ALBERTELLA longwelli has a very small pygidium or tail section, but it ends with two very long, rearward-pointing spines. It has a wide cephalon that ends in long, outwardly-pointing spines. The third...
By Joseph “PaleoJoe” Kchodl There are many species of CERAURUS trilobites around the world, including Canada and the United States. Each species has subtle differences. This CERAURUS pleurexanthemus specimen comes from Trenton Falls, New York. It averaged...
The Ordovician trilobite HOMOTELUS bromidensis is often found in mass death assemblages. It is theorized that they perished due to a catastrophic event during the mating period. Today, modern horseshoe crabs gather by the tens of thousands for mating....
HEMIRHODON amplypyge is a Cambrian trilobite that is roughly oval shaped, and it is very broad and flat. The Cephalon or head section is roughly semi-circular. The cephalon and pygidium are, again, broad and flat. The axial lobe is thinner than the pleural lobes. It...
By Joseph “PaleoJoe” Kchodl OLENELLUS fowleri is almost circular in shape. Its cephalon or head section is very large and broad and is the distinguishing feature of this trilobite. It is very highly ornamented with many rearward projecting spines. The eyes...
By Joseph “PaleoJoe” Kchodl CRYPTOLITHUS ulrichi has a very broad Cephalon bordered by a wide “brim,” which has a large number of pits or holes. It has been theorized that this trilobite was a filter feeder and that the wide brim and pits assisted in...
