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Creatures
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Animal
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Molluscs
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Cephalopods
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Paranoritidae
Creatures
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Cellular Organisms
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Eukaryotes
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Opisthokonts
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Animal
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Bilateria
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Protostomes
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Spiralians
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Molluscs
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Cephalopods
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Ammonites
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Meekoceratoidea
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Paranoritidae
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Lepiskites
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first appearance
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Body symmetry
ecomorphological guild
extinction status
first appearance
last appearance
motility
number of fossil occurrences
trophic guild
first appearance
Paleobiology Database
lower triassic epoch
URI:
http://resource.geosciml.org/classifier/ics/ischart/LowerTriassic
Attribution:
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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Paleobiology Database
251.3 million years ago
(max)