File:Ou et al. 2012 f03.jpg

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Captions

Captions

Fossils of Didazoon haoae

Summary

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Description
English: Gill structures of Didazoon haoae. (A) Laterally compressed specimen ELI-2010A (external view); internal openings (inhalant apertures) are revealed (red arrowheads) in left gills 1 to 3 by removal of gill cowls; intact left gill slits 4 and 5 show cowls and exhalant apertures (yellow arrowheads). (B) Laterally compressed specimen ELI-JS1001A, viewed from the interior. (C) Close-up image of right gill slit 3 in (B) (boxed area); note the oval inhalant aperture (arrowhead) surrounded by plate-like structures and radiating strands. (D) Schematic horizontal section through the lateral midline of Didazoon, with inferred ventilation of feeding-respiratory currents (dotted blue lines). Abbreviations: Co, cowl-like structure; LG1-5, left gills 1 to 5; M, mouth; Phx, pharynx; Po, gill pouch; RG1-4, right gills 1 to 4; Wf, water flow. Scale bars: 1 cm in (A), (B); 1 mm in (C).
Date
Source Ou, Q., Han, S.C., Morris, J. et al. Evidence for gill slits and a pharynx in Cambrian vetulicolians: implications for the early evolution of deuterostomes. BMC Biol 10, 81 (2012). https://doi.org/10.1186/1741-7007-10-81
Author Qiang Ou, Simon Conway Morris, Jian Han, Zhifei Zhang, Jianni Liu, Ailin Chen, Xingliang Zhang & Degan Shu

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current08:12, 2 July 2024Thumbnail for version as of 08:12, 2 July 20242,008 × 1,781 (1.85 MB)Qohelet12 (talk | contribs)Uploaded a work by Qiang Ou, Simon Conway Morris, Jian Han, Zhifei Zhang, Jianni Liu, Ailin Chen, Xingliang Zhang & Degan Shu from Ou, Q., Han, S.C., Morris, J. et al. Evidence for gill slits and a pharynx in Cambrian vetulicolians: implications for the early evolution of deuterostomes. BMC Biol 10, 81 (2012). https://doi.org/10.1186/1741-7007-10-81 with UploadWizard

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