XL 1.4" Elrathia Kingi Trilobite Fossil In Matrix House Range Utah Cambrian Age COA
Location: Utah House Range - Antelope Springs, Millard County
Weight: 8.2 Ounces
Dimensions: 3.7 Inches Long, 3.4 Inches Wide, 0.7 Inches Thick (Plate)
Trilobite is: 1.4 Inches Long, 1.1 Inches Wide
Comes with a free Certificate of Authenticity.
The item pictured is the one you will receive.
Elrathia Kingi Trilobite
Trilobites were an extinct group of marine arthropods that roamed the oceans over 500 million years ago, making them some of the earliest complex animals in Earth’s history. First appearing during the Early Cambrian period, at the start of the Atdabanian stage, these creatures thrived throughout the Paleozoic Era, long before the rise of dinosaurs. Their bodies were protected by a hard, segmented exoskeleton, divided into three distinct longitudinal lobes—a central axial lobe and two side pleural lobes—which gave rise to their name, trilobite, meaning “three-lobed.”
Trilobites were built in three main sections: the cephalon (head) with compound eyes, mouthparts, and antennae-like sensory organs; the thorax, a flexible middle region composed of 2 to 61 articulated segments that allowed movement and rolling for defense; and the pygidium (tail), where the fused segments formed a protective rear shield. These versatile arthropods inhabited a range of ancient marine environments, from shallow coastal waters to deeper ocean floors.
Thanks to their durable exoskeletons, trilobites are among the most commonly found and studied fossils, providing critical insight into early marine ecosystems, arthropod evolution, and the biodiversity of the Paleozoic oceans. Their remarkable variety of forms and sizes makes them one of the most iconic symbols of prehistoric marine life.
Please be aware of the nature of fossils:
Being buried underground for millions of years under immense pressure can be tough. Usually, fossils do not emerge in perfect condition; many require restoration, and some are even altered by people to improve their appearance. In the United States, workers perform this work very professionally, carefully unearthing and preserving these natural treasures.