Tetragraptus approximatus
http://dbpedia.org/resource/Tetragraptus_approximatus an entity of type: WikicatAnimalsDescribedIn1873
Tetragraptus approximatus is a species of dichograptid graptolite belonging to the genus Tetragraptus. It existed during the Floian Age (477.7 million years ago) of the Ordovician. It is an important index fossil in biostratigraphy.
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Tetragraptus approximatus
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37787849
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1098009247
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Nicholson, 1873
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Tetragraptus
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Tetragraptus approximatus 1.png
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Illustration of Tetragraptus approximatus
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approximatus
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Tetragraptus approximatus is a species of dichograptid graptolite belonging to the genus Tetragraptus. It existed during the Floian Age (477.7 million years ago) of the Ordovician. It is an important index fossil in biostratigraphy.
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Original illustrations of Tetragraptus approximatus by Nicholson . At the top is a magnified section of the stipes. A complete specimen is illustrated below.
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5095