Homotelus Bromidensis Trilobite Replica measures 10.5 x 8 inches. Homotelus Bromidensis Trilobite Replica is museum quality polyurethane cast. Made in USA. Thirty specimens in mosaic. Location: Oklahoma Age: Ordovician

Homotelus Bromidensis Trilobites are very well known, and possibly the second most famous fossil group after the dinosaurs with some 15,000 known species. Trilobites are extinct arthropods that form the class Trilobita.

They appeared at the start of the Cambrian period and flourished throughout the lower Paleozoic era before beginning a drawn out decline to extinction when the last of the Homotelus Bromidensis trilobites disappeared in the mass extinction at the end of the Permian 250 million years ago.

The body is divided into three major sections, a cephalon with eyes, mouth parts and sensory organs such as antennae, a thorax of multiple similar segments (that in some species allowed enrollment), and a pygidium, or tail section.

Homotelus Bromidensis Trilobites are extinct marine arthropods. They first appeared in Lower Cambrian rocks and the entire group went extinct at the end of the Permian. They had a calcitic exoskeleton and nonmineralizing parts underneath (legs, gills, gut).

The calcite skeleton is most commonly preserved in the fossil record, although soft part preservation is known in some trilobites (Ex: Burgess Shale and Hunsruck Slate). Homotelus Bromidensis  had a head (cephalon), a body of many segments (thorax), and a tail (pygidium). Molts and carcasses usually fell apart quickly.

Most trilobite fossils are isolated parts of the head (cranidium and free cheeks), individual thoracic segments, or isolated pygidia.

Interpretations of these monospecific assemblages range from mating congregations to mass mortality surfaces to mass molting surfaces. Some clusters are likely carcasses. Other clusters have been interpreted as mixtures of molts and carcasses.

There’s been disagreement over the generic assignment of this species. “bromidensis” has been variously assigned to Homotelus, Isotelus, Vogdesia, and Anataphrus.

Classification: Animalia, Arthropoda, Trilobita, Polymerida, Asaphidae

Homotelus Bromidensis Fossils have been found in the Bromide Formation of green algae, sponges, corals, graptolites, lampshells, moss animals, trilobites, clam shrimps, molluscs, several groups of echinoderms, and teeth of jawless fish.

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Additional information

Weight 8 lbs
Dimensions 10.5 × 8 in