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Archaeocydippida hunsrueckiana is an extinct species of comb jelly in the class Tentaculata, order Cydippida. Only one specimen is known and was found in Early Devonian slate near the German town of Buntenbach, Hunsrück, as a member of the Hunsrück Slate Lagerstätte. It is similar to another species from the same formation, Paleoctenophora brasseli.

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Ctenorhabdotus capulus is an extinct species of ctenophore, known from the Burgess shale in British Columbia, Canada. It is approximately 515 to 505 million years old and was equipped with 24 comb rows, three times as many as known from modern ctenophores. 5 specimens of Ctenorhabdotus are known from the Greater Phyllopod bed, where they comprise < 0.1% of the community.

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Fasciculus vesanus is an extinct species of stem-group ctenophores, known from the Burgess Shale of British Columbia, Canada. It is dated to 515 to 505 million years ago and belongs to middle Cambrian strata.

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Maotianoascus octonarius is an extinct species of stem-group ctenophore, known from the Chinese Maotianshan shales of Yunnan. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian strata.

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Paleoctenophora brasseli is a fossil of a marine species ctenophore, found in Devonian slate near the German town of Buntenbach in Hunsrück, Germany, as a member of the Hunsrück Slate Lagerstätte.

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Sinoascus paillatus is an extinct species of stem-group ctenophore, known from the Maotianshan shales of Yunnan, China. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian strata.

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Stromatoveris is a genus of fossil organism from Chengjiang deposits of Yunnan that was originally aligned with the fossil Charnia from the Ediacara biota. However, such an affinity is developmentally implausible and S. psygmoglena is now thought to be either a sessile basal ctenophore, or a sessile organism closely related to ctenophores. Nevertheless, a 2018 phylogenetic analysis by Jennifer Hoyal Cuthill and Jian Han indicated that Stromatoveris was a member of Animalia and closely related to ediacarans frond-like forms.

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Xanioascus canadensis is an extinct ctenophore, known from the Burgess Shale in British Columbia, Canada. The species which is about 515 to 505 million years old had 24 comb rows - in contrast to all modern forms which have only 8.