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Anaspidacea
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names
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extinction status
first appearance
last appearance
motility
number of fossil occurrences
skeleton contains
Paleobiology Database
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Barcode of Life Data Systems
Cellularity and growth form
Elofsson 1965
Hessler 1981
Mineralogy
Namigai et al 2014
Paleobiology Database
extinction status
Paleobiology Database
extant
URI:
http://eol.org/schema/terms/extant
Definition:
This taxon is still in existence, as opposed to extinct.
Attribution:
http://en.wikipedia.org/wiki/Extant_taxon
show all records
first appearance
Paleobiology Database
307 million years ago
(max)
Paleobiology Database
kasimovian age
URI:
http://resource.geosciml.org/classifier/ics/ischart/Kasimovian
Attribution:
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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last appearance
Paleobiology Database
290.1 million years ago
(min)
Paleobiology Database
sakmarian age
URI:
http://resource.geosciml.org/classifier/ics/ischart/Sakmarian
Attribution:
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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motility
Paleobiology Database
actively mobile
URI:
http://eol.org/schema/terms/activelyMobile
Definition:
uses self-propelled locomotion to change location on a regular basis
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(adult)
number of fossil occurrences
Paleobiology Database
11
skeleton contains
Paleobiology Database
chitin
URI:
http://purl.obolibrary.org/obo/CHEBI_17029
Definition:
An aminoglycan consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
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