Placocyathus apertus Milne Edwards & Haime 1848

Placocyathus apertus is a species of cnidarians in the family caryophylliid corals. This species is extinct. Dead Placocyathus apertus form shallow marine sediments. They have asexual reproduction and sexual reproduction.

URI: http://eol.org/schema/terms/extinct
Definition: A taxon is Extinct when there is no reasonable doubt that the last individual has died. A \r\ntaxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, \r\nat appropriate times (diurnal, seasonal, annual), throughout its historic range have failed \r\nto record an individual. Surveys should be over a time frame appropriate to the taxon’s \r\nlife cycle and life form.
Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria

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URI: http://purl.obolibrary.org/obo/NCIT_C25513
Definition: combine to create (something), eg: a structure

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URI: http://purl.obolibrary.org/obo/ENVO_03000034
Definition: Marine sediment that accumulates within shallow regions of the oceanic basin close to continents, such as the continental shelf, or continental slope

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URI: http://purl.obolibrary.org/obo/GO_0019954
Definition: Capable of the biological process in which new individuals are produced by either a single cell or a group of cells, in the absence of any sexual process.

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URI: http://purl.obolibrary.org/obo/GO_0019953
Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.

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EOL has data for 9 attributes, including:

ecomorphological guild
- URI: http://eol.org/schema/terms/EcomorphologicalGuild
- Definition: organisms that share certain morphological traits due to adaptation to similar environments and ecological roles
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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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habitat
- URI: http://rs.tdwg.org/dwc/terms/habitat
- Definition: A category or description of the habitat in which the Event occurred.
- Comment: Example: "oak savanna", "pre-cordilleran steppe"
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marine benthic
- URI: http://purl.obolibrary.org/obo/ENVO_01000024
- Definition: The marine benthic biome (benthic meaning 'bottom') encompasses the seafloor and includes such areas as shores, littoral or intertidal areas, marine coral reefs, and the deep seabed.
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mineralized skeleton contains
- URI: https://eol.org/schema/terms/mineralizedSkeletonContains
- Definition: Component found in mineralized skeletal tissue, (a specialized form of biogenic tissue in which the extracellular matrix is mineralized, and which functions in mechanical and structural support.)
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aragonite
- URI: http://purl.obolibrary.org/obo/CHEBI_52239
- Definition: Calcium carbonate (CO3Ca), aragonite structure
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reproduction
- URI: http://purl.obolibrary.org/obo/GO_0000003
- Definition: The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms
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asexual reproduction
- URI: http://purl.obolibrary.org/obo/GO_0019954
- Definition: Capable of the biological process in which new individuals are produced by either a single cell or a group of cells, in the absence of any sexual process.
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supporting structures and enclosures
- URI: http://www.marinespecies.org/traits/SupportingStructuresEnclosures
- Definition: Hard framework, internal or external, which supports and protects softer parts of plant, animal or unicellular organism, and to which muscles usually attach in animals, includes skeletons (derived from Lawrence, 2005).
- Attribution: http://www.marinespecies.org/traits/wiki/Traits:SupportingStructuresEnclosures Lawrence, E. (ed.) (2005) Henderson's dictionary of Biology (13th edition). London, United Kingdom: Pearson Education Limited.
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endoskeleton
- URI: http://purl.obolibrary.org/obo/UBERON_0010362
- Definition: internal support structure of an animal, composed of mineralized tissue.
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visual system
- URI: http://purl.obolibrary.org/obo/UBERON_0002104
- Definition: The sensory system subserving the sense of vision.
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photoreceptor cell
- URI: http://purl.obolibrary.org/obo/BTO_0001060
- Definition: A specialized cell type in a multicellular organism that is sensitive to light.
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