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Retroplumoidea Gill 1894
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overview
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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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Cellularity and growth form
Hessler 1981
Land and Fernald 1992
Mineralogy
Namigai et al 2014
Nilsson 1983
Paleobiology Database
World Register of Marine Species
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
100.5 million years ago
(max)
Paleobiology Database
upper cretaceous epoch
URI:
http://resource.geosciml.org/classifier/ics/ischart/UpperCretaceous
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last appearance
Paleobiology Database
tortonian age
URI:
http://resource.geosciml.org/classifier/ics/ischart/Tortonian
Attribution:
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
show all records
Paleobiology Database
7.246 million years ago
(min)
motility
Paleobiology Database
actively mobile
URI:
http://eol.org/schema/terms/activelyMobile
Definition:
uses self-propelled locomotion to change location on a regular basis
show all records
(adult)
number of fossil occurrences
Paleobiology Database
55
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.
show all records