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Creatures
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Isotelinae
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Megalaspides
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Megalaspides striatellus Fortey 1975
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first appearance
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Body symmetry
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first appearance
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last appearance
mineralized skeleton contains
motility
number of fossil occurrences
number of records in gbif
skeletal reinforcement
first appearance
Paleobiology Database
tremadocian age
URI:
http://resource.geosciml.org/classifier/ics/ischart/Tremadocian
Attribution:
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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Paleobiology Database
478.6 million years ago
(max)