XL 1.3" Elrathia Kingi Trilobite Fossil In Matrix House Range Utah Cambrian Age COA

Location: Utah House Range - Antelope Springs, Millard County

Weight: 9.3 Ounces 

Dimensions: 4.6 Inches Long, 3.4 Inches Wide, 0.7 Inches Thick (Plate)

Trilobite is: 1.3 Inches Long, 1 Inch Wide

Comes with a free Certificate of Authenticity. 

The item pictured is the one you will receive.

Elrathia Kingi Trilobite

• Classification: Extinct marine arthropods of the class Trilobita, among the first complex animals in Earth’s oceans

• Time Period: Appeared around 521 million years ago during the Early Cambrian (Atdabanian stage) and thrived throughout the Paleozoic Era

• Appearance: Hard, segmented exoskeleton divided into three longitudinal lobes—a central axial lobe and two pleural lobes—giving them a distinctive, “three-lobed” shape

• Body Structure:

  • Cephalon (head): Equipped with compound eyes, feeding structures, and sensory antennae for navigation and detecting predators

  • Thorax (midsection): Made of 2–61 flexible segments, allowing movement, rolling for protection, and burrowing

  • Pygidium (tail): Fused segments forming a sturdy tail shield for defense

• Habitats: Inhabited ancient oceans, ranging from shallow coastal waters to deep sea floors, adapting to diverse marine environments

• Fossil Significance: Their mineralized exoskeletons made them easily fossilized, resulting in one of the most abundant and studied fossil groups, helping scientists understand early arthropod evolution, Cambrian biodiversity, and Paleozoic marine ecosystems

• Unique Features: Highly diverse in size and shape, with some species rolling into a ball for protection; recognized as iconic fossils that illustrate the complexity of early 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.