Yunnanozoon
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Yunnanozoon lividum is an extinct species of bilaterian animal from the Lower Cambrian Chengjiang biota of Yunnan province, China. Its affinities have long been the subject of controversy.
Yunnanozoon lividum RCCBYU 10310
Well preserved specimen and diagram of body anatomy
Vetulicolia
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Vetulicolia is a group of bilaterian marine animals encompassing several extinct species from the Cambrian, and possibly Ediacaran, periods. As of 2023, the majority of scientists favor placing Vetuli
Yunnanozoon
…A 2024 study motivated by a reinterpretation of the fossil Pikaia placed Yunnanozoon as a transitional stem-chordate form between a paraphyletic Vetulicolia and the more crownward Chordata as shown on this simplified cladogram: Yunannozoon is suggested to have used its filamentous arches to feed with the…
Vetulicola cuneata ウェツリコラ クニエータ 1
Didazoon haoae
Schematic of V. rectangulata pharynx and alimentary canal: dashed line; ventral food grooves: dotted line; gill slits: pink
Life restoration of Banffia constricta