Trigoides

Trigoides aclis; Temporal range: Cambrian Stage 3 PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Ctenophora
Class:	† Scleroctenophora
Genus:	† Trigoides ; Luo & Hu, 1999
Species:	†T. aclis
Binomial name
	†Trigoides aclis; Luo & Hu, 1999

Last updated January 06, 2026

Trigoides aclis is an extinct species of comb jelly. The genus Trigoides is known from fossils from the Chengjiang Lagerstätte.^[1] It is proposed to be a type of ctenophore.^[2]^[3] A phylogenetic study of Cambrian stem-group ctenophores recovered Trigoides in Scleroctenophora, along with Galeactena , Maotianoascus , Thaumactena , Batofasciculus and Gemmactena .^[4]

References

↑ Chen, Luo, Hu, Yin, Jiang, Wu, Li & Chen (2002). Early Cambrian Chengjiang fauna in eastern Yunnan, China. Kunming, China: Yunnan Science & Technology Press. (In Chinese)
↑ Conway-Morris (2006), Phil Trans R Soc B, 361:1069-83
↑ Hu, Steiner, Zhu, Erdtmann, Luo, Chen, Weber (2007). "Diverse pelagic predators from the Chengjiang Lagerstätte and the establishment of modern-style pelagic ecosystems in the early Cambrian." Palaeogeography, Palaeoclimatology, Palaeoecology, 254(1-2): 307-316
↑ Zhao, Yang; Vinther, Jakob; Parry, Luke A.; Wei, Fan; Green, Emily; Pisani, Davide; Hou, Xianguang; Edgecombe, Gregory D.; Cong, Peiyun (2019). "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 . Retrieved 2024-12-18.

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[1] Chen, Luo, Hu, Yin, Jiang, Wu, Li & Chen (2002). Early Cambrian Chengjiang fauna in eastern Yunnan, China. Kunming, China: Yunnan Science & Technology Press. (In Chinese)

[2] Conway-Morris (2006), Phil Trans R Soc B, 361:1069-83

[3] Hu, Steiner, Zhu, Erdtmann, Luo, Chen, Weber (2007). "Diverse pelagic predators from the Chengjiang Lagerstätte and the establishment of modern-style pelagic ecosystems in the early Cambrian." Palaeogeography, Palaeoclimatology, Palaeoecology, 254(1-2): 307-316

[Zhao-2019-4] Zhao, Yang; Vinther, Jakob; Parry, Luke A.; Wei, Fan; Green, Emily; Pisani, Davide; Hou, Xianguang; Edgecombe, Gregory D.; Cong, Peiyun (2019). "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 . Retrieved 2024-12-18.

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