// Workers AI · dad joke modeWhat did the galeactena say? I'm star-struck.
| Galeactena | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Ctenophora |
| Class: | †Scleroctenophora |
| Genus: | †Galeactena Ou, Xiao, Han, Sun, Zhang, Zhang & Shu, 2015 |
| Species: | †G. hemispherica |
| Binomial name | |
| †Galeactena hemispherica Ou, Xiao, Han, Sun, Zhang, Zhang & Shu, 2015 | |
Galeactena is an extinct genus of Scleroctenophoran comb jellies (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.[1][2][3]
It was a planktonic genus drifting through the ocean and filter feeding.[4]
Description
[edit]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.[1][5] The body of Galeactena and its apical organ is supported by a external organic skeleton.[6]
Taxonomy
[edit]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.[1][2]
References
[edit]- 1 2 3 "Science". AAAS. doi:10.1126/sciadv.1500092. PMC 4646772. PMID 26601209. Retrieved 2026-07-14.
- 1 2 "WoRMS - World Register of Marine Species - Out of scope". marinespecies.org. Retrieved 2026-07-14.
- ↑ "Galeactena". www.gbif.org. Retrieved 2026-07-14.
- ↑ "600-million-year-old fossils that reveal the world's first animals – Museum Crush". 2019-05-28. Retrieved 2026-07-14.
- ↑ "Galeactena hemispherica — Chris Otley". chrisotley.com. Retrieved 2026-07-14.
- ↑ Zhao, Yang; Vinther, Jakob; Parry, Luke A.; Wei, Fan; Green, Emily; Pisani, Davide; Hou, Xianguang; Edgecombe, Gregory D.; Cong, Peiyun (2019-04-01). "Cambrian Sessile, Suspension Feeding Stem-Group Ctenophores and Evolution of the Comb Jelly Body Plan". Current Biology. 29 (7): 1112–1125.e2. doi:10.1016/j.cub.2019.02.036. hdl:1983/40a6bcb8-a740-482c-a23c-7d563faea5c5. ISSN 0960-9822. PMID 30905603.