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1.5" Elrathia Kingi Trilobite Fossil Utah Cambrian Age 521 Million Years Old COA

$38.99

Location: Utah House Range - Antelope Springs, Millard County

Weight: 0.3 Ounces

Dimensions: 1.5 Inches Long, 1 Inch Wide, 0.2 Inches Thick

Comes with a free Certificate of Authenticity. 

The item pictured is the one you will receive.


Elrathia Kingi Trilobite

Trilobites are a fascinating group of extinct marine arthropods classified under the class Trilobita. They first appeared in the fossil record during the Atdabanian stage of the Early Cambrian period, approximately 521 million years ago, and represent some of the earliest complex organisms on Earth. These ancient creatures had hard, segmented exoskeletons, which greatly increased their chances of fossilization. Trilobites went extinct well before the rise of dinosaurs, making them invaluable for understanding the Paleozoic Era.

The trilobite body exhibits a distinct three-lobed structure: a central axial lobe and two lateral pleural lobes. Their anatomy is divided into three main regions:

  1. Cephalon (head): Containing eyes, sensory organs such as antennae, and mouthparts.

  2. Thorax (middle): Comprising 2–61 articulated segments, allowing movement and protective enrollment.

  3. Pygidium (tail): Segments fused into a rigid posterior section.

Their unique exoskeletal design and well-preserved fossils make trilobites a key resource for paleontologists studying early marine ecosystems.


 

 


Please be aware of the nature of fossils:

Being buried under the ground for millions of years under tons of pressure tends to be rough. No fossil comes out of the ground whole and perfect. Most fossils have undergone some restoration, while others are altered by man simply to enhance their presentation in different ways. The workers in the United States do a very professional job, unearthing and preserving these natural treasures