Cathaymyrus is a genus of Early Cambrianchordate known from the Chengjiang biota in Yunnan Province, China.[2] Both species have a long segmented body with no distinctive head. The segments resemble the v-shaped muscle blocks found in cephalochordates such as Amphioxus. A long linear impression runs along the "back" of the body looking something like a chordate notochord.[citation needed]
While some authors have suggested that the genus is a cephalochordate and closely related to living lancelets, other authors have disputed this due to the poor preservation of the head region, considering its placement within Chordata uncertain.[3]
^Yang, C.; Li, X.-H.; Zhu, M.; Condon, D. J.; Chen, J. (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.
^Nanglu, Karma; Cole, Selina R.; Wright, David F.; Souto, Camilla (February 2023). "Worms and gills, plates and spines: the evolutionary origins and incredible disparity of deuterostomes revealed by fossils, genes, and development". Biological Reviews. 98 (1): 316–351. doi:10.1111/brv.12908. ISSN 1464-7931.
April 12, 2024
cathaymyrus, genus, early, cambrian, chordate, known, from, chengjiang, biota, yunnan, province, china, both, species, have, long, segmented, body, with, distinctive, head, segments, resemble, shaped, muscle, blocks, found, cephalochordates, such, amphioxus, l. Cathaymyrus is a genus of Early Cambrian chordate known from the Chengjiang biota in Yunnan Province China 2 Both species have a long segmented body with no distinctive head The segments resemble the v shaped muscle blocks found in cephalochordates such as Amphioxus A long linear impression runs along the back of the body looking something like a chordate notochord citation needed CathaymyrusTemporal range Cambrian Stage 3 518 Ma 1 PreꞒ Ꞓ O S D C P T J K Pg N C diadexus and VetulocystisScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataGenus CathaymyrusShu Conway Morris amp Zhang 1996Type speciesCathaymyrus diadexusShu Conway Morris amp Zhang 1996Species C diadexus Shu Conway Morris amp Zhang 1996 C haikoensis Luo amp Hu 2001While some authors have suggested that the genus is a cephalochordate and closely related to living lancelets other authors have disputed this due to the poor preservation of the head region considering its placement within Chordata uncertain 3 See also editMaotianshan shales Haikouichthys MyllokunmingiaReferences edit Yang C Li X H Zhu M Condon D J Chen J 2018 Geochronological constraint on the Cambrian Chengjiang biota South China PDF Journal of the Geological Society 175 4 659 666 Bibcode 2018JGSoc 175 659Y doi 10 1144 jgs2017 103 ISSN 0016 7649 S2CID 135091168 Shu D G Luo H L Conway Morris S Zhang X L Hu S X Chen L Han J Zhu M Li Y Chen L Z 1999 Lower Cambrian vertebrates from south China Nature 402 6757 42 Bibcode 1999Natur 402 42S doi 10 1038 46965 S2CID 4402854 Nanglu Karma Cole Selina R Wright David F Souto Camilla February 2023 Worms and gills plates and spines the evolutionary origins and incredible disparity of deuterostomes revealed by fossils genes and development Biological Reviews 98 1 316 351 doi 10 1111 brv 12908 ISSN 1464 7931 Retrieved from https en wikipedia org w index php title Cathaymyrus amp oldid 1213701655, wikipedia, wiki, book, books, library,
