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Peracarids

Peracarida Calman 1904

Body symmetry

Namigai et al 2014
bilaterally symmetric
URI: http://purl.obolibrary.org/obo/PATO_0001324

Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves

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cellularity

Cellularity and growth form
multicellular
URI: http://purl.obolibrary.org/obo/PATO_0001993

Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]

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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

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first appearance

Paleobiology Database

364.7 million years ago

(max)
Paleobiology Database
famennian age
URI: http://resource.geosciml.org/classifier/ics/ischart/Famennian

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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habitat

TreatmentBank
continental slope
URI: http://purl.obolibrary.org/obo/ENVO_00000273

Definition: A slope which is part of the seafloor and extends from the end of the continental shelf (the shelf break) to the continental rise.

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known marine species

Appeltans et al

17115

last appearance

Paleobiology Database
cenozoic era
URI: http://resource.geosciml.org/classifier/ics/ischart/Cenozoic

Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale

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mineralized skeleton contains

Mineralogy
calcium carbonate
URI: http://purl.obolibrary.org/obo/CHEBI_3311

Definition: A carbonate salt that has formula CO3Ca

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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

181

number of new species decribed 1999-2008

Appeltans et al

2275

percent of marine species currently described

Appeltans et al

13

(max)
Appeltans et al

7

(min)

percent surveyed species not yet known to science

Appeltans et al

0.67

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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skeleton structure

World Register of Marine Species
exoskeleton
URI: http://purl.obolibrary.org/obo/UBERON_0006611

Definition: Exoskeleton or shell, including those of mollusks, turtles, insects and crustaceans

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World Register of Marine Species
condensed
URI: http://purl.obolibrary.org/obo/PATO_0001485

Definition: A structural quality inhering in a bearer by virtue of the bearer's being thicker or more closely packed together; pressed tightly together.

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total species (expert opinion)

Appeltans et al

132297

(min)
Appeltans et al

228231

(max)