Biology:Cathaymyrus

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Short description: Extinct genus of lancelets

Cathaymyrus
Temporal range: Cambrian Stage 3, 518 Ma[1]
Cathaymyrus diacodexis.jpg
C. diadexus and Vetulocystis
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Subphylum: Cephalochordata
Genus: Cathaymyrus
Shu, Conway Morris & Zhang 1996
Type species
Cathaymyrus diadexus
Shu, Conway Morris & Zhang 1996
Species
  • C. diadexus Shu, Conway Morris & Zhang 1996
  • C. haikoensis Luo & Hu 2001

Cathaymyrus is a genus of Early Cambrian cephalochordate known from the Chengjiang locality 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 similar cephalochordates such as Amphioxus. A long linear impression runs along the "back" of the body looking something like a chordate notochord. Cathaymyrus is related to Pikaia, another cephalochordate from the Burgess Shale.

See also

References

  1. Yang, C.; Li, X.-H.; Zhu, M.; Condon, D. J.; Chen, J. (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (in en). Journal of the Geological Society 175 (4): 659–666. doi:10.1144/jgs2017-103. ISSN 0016-7649. Bibcode2018JGSoc.175..659Y. http://nora.nerc.ac.uk/id/eprint/521412/1/2018-JGS-Chuan%20Yang%20et%20al.pdf. 
  2. Shu, D-G.; Luo, H-L.; Conway Morris, S.; Zhang, X-L.; Hu, S-X.; Chen, L.; Han, J.; Zhu, M. et al. (1999). "Lower Cambrian vertebrates from south China". Nature 402 (6757): 42. doi:10.1038/46965. Bibcode1999Natur.402...42S. 

Wikidata ☰ Q19890829 entry