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There is a page named "Ctenaspids" on Wikipedia
Ctenaspidae (redirect from Ctenaspids)Ctenaspidae is a family of extinct cyathaspidiform heterostracan agnathans in the suborder Cyathaspidida. If Amphiaspidida can be ignored as a daughter-taxon...1 KB (77 words) - 01:11, 23 August 2022
almost uniformly benthic in lifestyle, though only the amphiaspids and the ctenaspids are thought to be burrowers. The taxonomy of Cyathaspidiformes is a convoluted...6 KB (579 words) - 01:38, 8 January 2024- Small, Gorman II. David K. Elliott; Alain R. M. Blieck (2010). "A new ctenaspid (Agnatha, Heterostraci) from the Early Devonian of Nevada, with comments...57 KB (2,152 words) - 02:43, 27 June 2024
