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Investigating the diversity and characteristics of Echinoderms, Xenoturbellids, Hemichordates, and more in the Cyclostomata class. Includes species diagnosis, holotype designation, variations among paratypes, and additional data.
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Species description • Designate a Holotype • Diagnose the species • Describe the Holotype and variation among paratypes • Other data • illustrations, range map, ecology, phylogeny
Echinoderm: sea stars sea urchins Xenoturbellid: marine worm Hemichordate: acorn worm
Cephalochordate: amphioxus
Cyclostomata: Petromyzontida: lamprey