Cheloniellida

L'EdV a l'ha dij dàit për 4 atribù, dont:

prima aparission
- URI: http://eol.org/schema/terms/FossilFirst
- Definission: The first appearance of this taxon in the fossil record.
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età cambrian-a stadi 4
- URI: http://resource.geosciml.org/classifier/ics/ischart/CambrianStage4
- Atribussion: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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nùmer d'ocorense ëd fòssij
- URI: http://eol.org/schema/terms/fossilOccPBDB
- Definission: 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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1