Elrathia kingii, Cambrian trilobite fossils. Trilobites were arthropods that fed as they crawled on the seabed. They lived between 500 and 300 million

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Elrathia kingii, Cambrian trilobite fossils. Trilobites were arthropods that fed as they crawled on the seabed. They lived between 500 and 300 million years ago and are now extinct. These specimens date from the Middle Cambrian, and were found in the Wheeler Shale, House Range, Utah, USA.

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Photo credit: © SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, 2, america, american, animal, arthropod, biological, biology, cambrian, duo, elrathia, evolution, evolutionary, extinct, fauna, fossil, fossilised, fossilized, fossils, historical, history, house, kingii, middle, natural, nature, north, pair, palaeobiology, palaeontology, palaeozoology, paleontology, prehistoric, prehistory, range, shale, specimen, specimens, states, trilobite, trilobites, united, usa, utah, wheeler, wildlife, zoological, zoology