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Trilobite fossils. Rock containing a number of trilobite fossils (Ellipsocephalus hoffi) from the middle Cambrian period (about 515 million years ago)
Trilobite fossils. Rock containing a number of trilobite fossils (Ellipsocephalus hoffi) from the middle Cambrian period (about 515 million years ago). Trilobites are extinct hard-shelled, segmented arthropods that lived in the Earth's ancient seas. They are considered one of Earth's earliest, complex life-forms and are one of the most well-known creatures of the Palaeozoic Era. Trilobites existed between the Cambrian and Permian periods around 542-250 million years ago, and were mainly bottom-feeding, scavengers.
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Photo credit: © SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: animal, animals, aquatic, arthropod, biological, biology, bottom, bottom-feeding, cambrian, ellipsocephalus, extinct, fauna, feeding, fossil, fossilised, fossilized, fossils, geological, geology, historical, history, hoffi, invertebrate, invertebrates, marine, multiple, nature, paeleozoological, palaeontological, palaeontology, palaeozoic, palaeozoological, palaeozoology, palaezoological, paleontological, paleontology, paleozoic, paleozoological, paleozoology, prehistoric, prehistory, rock, scavenger, sea, trilobita, trilobite, underwater, wildlife, zoological, zoology