Galeactena
genus of comb jellies
Galeactena is an extinct genus of scleroctenophoran comb jellies (members of the phylum Ctenophora) that lived during the early Cambrian period as a member of the Chengjiang biota. This genus only contains one species, Galeactena hemispherica, making it monotypic.
It was a planktonic genus, drifting through the ocean and filter feeding.
Description
The anatomy of Galeactena is globose, bearing resemblance to an upside-down garlic bulb. All specimens of Galeactena have a consistent vaulted hemispherical shape with little evidence of its body being twisted or distorted. It has eight rows of cilia which it uses to propel through the water. The body of Galeactena and its apical organ is supported by a external organic skeleton.
Taxonomy
This genus is a member of the taxonomic class Scleroctenophora, making it related to genera such as Batofasciculus. However it was most closely related to genera such as Maotianoascus.
This brief starts where responsible research should: with the source description of “Galeactena” as genus of comb jellies. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the science & nature register because the source frames it as genus of comb jellies. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Aug 6, 2026. The linked authority identifier is Q21591514. None of the 0 selected statements returned an explicit reference.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Galeactena” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.