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Cryptolithoides ulrichi, Ordovician trilobite fossils. Trilobites were arthropods that fed as they crawled on the seabed. They lived between 500 and 3
Cryptolithoides ulrichi, Ordovician 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 Ordovician, and were found in the Trentonian Stage, Viola Limestone, Arbuckle Mountains, Carter Country, Oklahoma, USA. This assemblage of fossils is from the Pete Lawrance Collection. It is a beautifully preserved assemblage of trinucleid trilobites, as well as some graptolites.
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Photo credit: © SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: -, america, american, animal, arbuckle, arthropod, biological, biology, carter, collection, country, cryptolithoides, evolution, evolutionary, extinct, fauna, fossil, fossilised, fossilized, fossils, graptolites, historical, history, lawrance, limestone, middle, mountains, natural, nature, north, oklahoma, ordovician, palaeobiology, palaeontology, palaeozoology, paleontology, pete, prehistoric, prehistory, specimen, specimens, stage, states, trentonian, trilobite, trilobites, trinucleid, ulrichi, united, usa, viola, wildlife, zoological, zoology