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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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UPPER CAMBRIAN TRILOBITE PROCERATOPYGE

Proceratopyge rectispinataA lovely creamy brown Proceratopyge rectispinata trilobite from Upper Cambrian deposits in the McKay Group near Cranbrook, British Columbia. Trilobites, as you no doubt already know, are extinct marine arthropods that lived in Earth’s oceans for over 270 million years, first appearing in the Early Cambrian and disappearing at the end of the Permian. They are

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