CalCOFI.io CalCOFI.io open data ecosystem

Pleurosigma

Genusaccepted · checked 2026-09-04WoRMS 149181ITIS 4592key worms:149181
i

2026-09-04: itis_id 4592 via WoRMS external link

calcofi_phytoplankton:diatom_pennate

Pleurosigma is a genus of widely distributed diatoms found abundantly in brackish to marine waters. It is a group of primarily pelagic or benthic species found in large populations on sediments, although some species are also found in planktonic samples.W CalCOFI holds 25 observations of it in 1 dataset between 1996 and 2022, across 3 taxa under it.R

25
observations
1,227
records
409
sampling events
1996–2022
years
1
datasets
2
species under it
Photograph of Pleurosigma
Photo · tintinnidguy · CC BY 4.0 · inat

Observed in 1 dataset
i

One row per dataset, and beside it one cell per year, darker with more observations — the same strip the front door draws per dataset. Each row ends with the name that dataset uses (dataset_taxon); the accepted name is written once, in the title above. A quiet pill marks a name the authority does not accept.

  • 409 obs409 events1996–2022
    name used: Pleurosigma diatom, pennate · code 489

Ways inExplorerdb-queryERDDAPRPythonThis page as JSON

Code and endpoints ERDDAP · R · Python · JSON
ERDDAPCalCOFI's own server, the Phytoplankton table constrained to this taxon
https://erddap.calcofi.io/erddap/tabledap/calcofi_phytoplankton.html?&taxon_key=%22worms:149181%22

Read from taxa.json of release v2026.10.20, written at release by calcofi4db::build_taxa_catalog(). The catalog's index is /species/.

How big is it not on record

Not on record: no authority the fetcher reads carries a length for this taxon (a genus page could show the range of its species).

Under it 2 taxa · Pleurosigma directum most observed
Lineage 8 ranks · Chromista to Pleurosigmataceae
Credits silhouette · photo · text
Elsewhere Wikidata · iNaturalist · GBIF

WikidataiNaturalistGBIF

The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.

Cite the release, v2026.10.20

Cite the release, v2026.10.20; each dataset's own citation, licence and DOI are on its page. How to cite ↗