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- Xidazoon abstract "Xidazoon stephanus is an extinct vetulicolian chordate described by Shu, et al. (1999) based on fossils found in the Qiongzhusi (Chiungchussu) Formation, Yu'anshan Member (Eoredlichia zone), Lower Cambrian, Haikou, (Kunming), about 50 km west of Chengjiang, China.The fossils show that the body of the animal was divided into two parts. The anterior part of the body is moderately inflated, with a prominent mouth circlet. It has faint transverse divisions towards the front, but is otherwise smooth. The mouth circlet consists of about 30 plates divided into inner and outer regions. The anterior section has five structures on each side, which are interpreted as gills. A dark region running close to the ventral and posterior margins is interpreted as an endostyle. The condition of the anterior portion of the fossils suggests that it was thin-walled, i.e., that the anterior portion was largely hollow. The posterior part of the body tapers towards front and back (diamond-shaped), and is divided into seven segments covered in cuticle with three less well-defined segments at the anterior end. There are short spines at the posterior tip. The authors describe an alimentary canal with terminal openings and a rectum with what might be dilator muscles.Based on a comparison of the incomplete/damaged holotype with the incomplete/damaged holotype of Pomatrum ventralis, researchers Aldridge, et al., proposed that X. stephanus was a junior synonym of P. ventralis because the anterior portions of the two species are largely identical. However, other researchers point out that, although the anterior portions may be extremely similar, the posterior portions of the carapaces differ in shape and width, and, more importantly, the tails differ greatly, in that in X. stephanus, it is composed of seven segments and leaf- or diamond-shaped, while in P. ventralis, the tail is oar-shaped, and is composed of many more segments, especially near its base.".
- Xidazoon family Didazoonidae.
- Xidazoon kingdom Animal.
- Xidazoon order Vetulicolia.
- Xidazoon phylum Chordate.
- Xidazoon phylum Vetulicolia.
- Xidazoon thumbnail Xidazoon_stephanus_e.jpg?width=300.
- Xidazoon wikiPageExternalLink nwu1-4.pdf.
- Xidazoon wikiPageExternalLink nwu1-9.pdf.
- Xidazoon wikiPageID "3300476".
- Xidazoon wikiPageLength "3846".
- Xidazoon wikiPageOutDegree "26".
- Xidazoon wikiPageRevisionID "646107997".
- Xidazoon wikiPageWikiLink Alimentary_canal.
- Xidazoon wikiPageWikiLink Anatomical_terms_of_location.
- Xidazoon wikiPageWikiLink Animal.
- Xidazoon wikiPageWikiLink Anterior.
- Xidazoon wikiPageWikiLink Category:Maotianshan_shales_fossils.
- Xidazoon wikiPageWikiLink Category:Monotypic_animal_genera.
- Xidazoon wikiPageWikiLink Category:Vetulicolia.
- Xidazoon wikiPageWikiLink Chengjiang.
- Xidazoon wikiPageWikiLink Chengjiang_County.
- Xidazoon wikiPageWikiLink China.
- Xidazoon wikiPageWikiLink Chordata.
- Xidazoon wikiPageWikiLink Chordate.
- Xidazoon wikiPageWikiLink Cuticle.
- Xidazoon wikiPageWikiLink Didazoonidae.
- Xidazoon wikiPageWikiLink Endostyle.
- Xidazoon wikiPageWikiLink Fossil.
- Xidazoon wikiPageWikiLink Gill.
- Xidazoon wikiPageWikiLink Gills.
- Xidazoon wikiPageWikiLink Human_gastrointestinal_tract.
- Xidazoon wikiPageWikiLink Kunming.
- Xidazoon wikiPageWikiLink Maotianshan_Shales.
- Xidazoon wikiPageWikiLink Maotianshan_shales.
- Xidazoon wikiPageWikiLink Mouth.
- Xidazoon wikiPageWikiLink Pomatrum.
- Xidazoon wikiPageWikiLink Posterior_(anatomy).
- Xidazoon wikiPageWikiLink Segment_(biology).
- Xidazoon wikiPageWikiLink Segmentation_(biology).
- Xidazoon wikiPageWikiLink Transverse_plane.
- Xidazoon wikiPageWikiLink Ventral.
- Xidazoon wikiPageWikiLink Vetulicolia.
- Xidazoon wikiPageWikiLink Vetulicolida.
- Xidazoon wikiPageWikiLinkText "Xidazoon".
- Xidazoon binomial "Xidazoon stephanus".
- Xidazoon familia Didazoonidae.
- Xidazoon familiaAuthority "Shu & Han 2001".
- Xidazoon genus "Xidazoon".
- Xidazoon genusAuthority "Shu, Conway Morris & Zhang 1999".
- Xidazoon hasPhotoCollection Xidazoon.
- Xidazoon imageCaption "Artist's concept of Xidazoon stephanus".
- Xidazoon imageWidth "240".
- Xidazoon name "Xidazoon".
- Xidazoon ordo Vetulicolia.
- Xidazoon ordo Vetulicolida.
- Xidazoon ordoAuthority "Chen & Zhou 1997".
- Xidazoon phylum Chordata.
- Xidazoon phylum Chordate.
- Xidazoon regnum "Animalia".
- Xidazoon species "X. stephanus".
- Xidazoon subphylum Vetulicolia.
- Xidazoon subphylumAuthority "Shu, et al. 2001".
- Xidazoon wikiPageUsesTemplate Template:Italic_title.
- Xidazoon wikiPageUsesTemplate Template:Portal.
- Xidazoon wikiPageUsesTemplate Template:Reflist.
- Xidazoon wikiPageUsesTemplate Template:Taxobox.
- Xidazoon subject Category:Maotianshan_shales_fossils.
- Xidazoon subject Category:Monotypic_animal_genera.
- Xidazoon subject Category:Vetulicolia.
- Xidazoon hypernym Chordate.
- Xidazoon type Animal.
- Xidazoon type Article.
- Xidazoon type Eukaryote.
- Xidazoon type Species.
- Xidazoon type Article.
- Xidazoon type Thing.
- Xidazoon type Q19088.
- Xidazoon type Q729.
- Xidazoon comment "Xidazoon stephanus is an extinct vetulicolian chordate described by Shu, et al. (1999) based on fossils found in the Qiongzhusi (Chiungchussu) Formation, Yu'anshan Member (Eoredlichia zone), Lower Cambrian, Haikou, (Kunming), about 50 km west of Chengjiang, China.The fossils show that the body of the animal was divided into two parts. The anterior part of the body is moderately inflated, with a prominent mouth circlet.".
- Xidazoon label "Xidazoon".
- Xidazoon sameAs Xidazoon.
- Xidazoon sameAs Xidazoon_stephanus.
- Xidazoon sameAs シダズーン.
- Xidazoon sameAs m.094721.
- Xidazoon sameAs Q1588028.
- Xidazoon sameAs Q1588028.
- Xidazoon wasDerivedFrom Xidazoon?oldid=646107997.
- Xidazoon depiction Xidazoon_stephanus_e.jpg.
- Xidazoon isPrimaryTopicOf Xidazoon.
- Xidazoon name "Xidazoon".