Cycadales

Paleobiology Database
extinction status
- URI: http://eol.org/schema/terms/ExtinctionStatus
- Definition: Indicates whether a taxon is extant (living today) or extinct.
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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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Paleobiology Database
first appearance
- URI: http://eol.org/schema/terms/FossilFirst
- Definition: The first appearance of this taxon in the fossil record.
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Guadalupian Epoch
- URI: http://resource.geosciml.org/classifier/ics/ischart/Guadalupian
- Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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Paleobiology Database
first appearance
- URI: http://eol.org/schema/terms/FossilFirst
- Definition: The first appearance of this taxon in the fossil record.
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272.3 million years ago

(max)
Paleobiology Database
last appearance
- URI: http://eol.org/schema/terms/FossilLast
- Definition: The last appearance of this taxon in the fossil record.
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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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Paleobiology Database
number of fossil occurrences in the Paleobiology Database
- URI: http://eol.org/schema/terms/fossilOccPBDB
- Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
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1263