Bilateria
Bilateria is a large clade of animals characterised by bilateral symmetry during embryonic development. This means their body plans are laid around a longitudinal axis with a front and a rear end, as well as a left–right–symmetrical belly (ventral) and back (dorsal) surface.W CalCOFI holds 63,550 observations of it in 1 dataset between 1987 and 2022, across 97 taxa under it.R
- 63,550
- observations
- 63,550
- records
- 1987–2022
- years
- 1
- datasets
- 90
- species under it
Observed in nothing keyed to it directly
Every observation under it belongs to one of the taxa under it — 1 taxon, in the fold below.
Ways inExplorerdb-queryRPythonThis page as JSON
Code and endpoints R · Python · JSON
library(calcofi4r) con <- cc_get_db() # the promoted release tbl(con, "obs_bio") |> filter(taxon_key == "itis:914154")
import calcofi4py as cc
con = cc.cc_get_db()
con.sql("SELECT * FROM obs_bio WHERE taxon_key = 'itis:914154'").df()Read from taxa.json of release v2026.10.21, 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 1 taxon
- iK Deuterostomia63,550
Lineage 1 rank · Animalia
Credits silhouette · photo · text
- Silhouette · T. Michael Keesey · CC0 1.0 · PhyloPic, drawn from Vernanimalcula guizhouena · source
- Photo · abboud_d_913 · CC BY-NC 4.0 · inat · source
- Text · Wikipedia, “Bilateria” · CC BY-SA 4.0 · revision 1368835747
Elsewhere Wikidata · iNaturalist
The same organism on the services the faces were fetched from; the authorities' own pages are the ids in the head.
Cite the release, v2026.10.21
Cite the release, v2026.10.21; each dataset's own citation, licence and DOI are on its page. How to cite ↗