Image of Actiniscus pentasterias (Ehrenberg) Ehrenberg 1844

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Actiniscales Sournia 1984

ecomorphological guild

World Register of Marine Species
planktonic
URI: http://www.marinespecies.org/traits/Plankton

Definition: Living in the fluid medium (water or air) but unable to maintain their position or distribution independently of the movement of the water/air mass (adapted from Lincoln et al., 1998).

Attribution: http://www.marinespecies.org/traits/wiki/Traits:Plankton

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World Register of Marine Species
algae
URI: https://www.wikidata.org/entity/Q37868

Definition: aquatic, photosynthetic, and non vascular eukaryotic organisms (a polyphyletic group)

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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
campanian age
URI: http://resource.geosciml.org/classifier/ics/ischart/Campanian

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

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Paleobiology Database

83.59999999999999 million years ago

(max)

last appearance

Paleobiology Database

11.608 million years ago

(min)
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

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number of fossil occurrences

Paleobiology Database

3