Margaretia
| Margaretia Temporal range:
| |
|---|---|
| M. dorus fossil | |
| Scientific classification | |
| Domain: | incertae sedis |
| Genus: | †Margaretia Walcott, 1931 |
| Species: | †M. dorus
|
| Binomial name | |
| †Margaretia dorus Walcott, 1931
| |
Margaretia is a frondose organism known from the middle Cambrian Burgess Shale and the Kinzers Formation of Pennsylvania.[1] Its fronds reached about 10 cm in length and are peppered with a range of length-parallel oval holes. It was originally interpreted as an alcyonarian coral.[2] It was later reclassified as a green alga closely resembling modern Caulerpa by D.F. Satterthwait in her Ph.D. thesis in 1976,[3] a finding supported by Conway Morris and Robison in 1988.[2] More recently, it has been treated as an organic tube, that is used as nest of hemichordate Oesia.[4]
References
- ^ Briggs, D. E. G.; Erwin, D. H.; Collier, F. J. (1995), Fossils of the Burgess Shale, Washington: Smithsonian Institution Press, ISBN 1-56098-659-X, OCLC 231793738
- ^ a b Conway Morris, S.; Robison, R.A. (1988). "More soft-bodied Animals and Algae from the Middle Cambrian of Utah and British Columbia". University of Kansas Paleontological Contributions (122): 8–11. hdl:1808/3691.
- ^ Satterthwait, Donna Fields (1976). Paleobiology and Paleoecology of Middle Cambrian Algae from Western North America (Ph.D. thesis). University of California at Los Angeles.
- ^ Nanglu, Karma; Caron, Jean-Bernard; Conway Morris, Simon; Cameron, Christopher B. (2016). "Cambrian suspension-feeding tubicolous hemichordates". BMC Biology. 14 (1): 56. doi:10.1186/s12915-016-0271-4. ISSN 1741-7007. PMC 4936055. PMID 27383414.
External links
- "Margaretia dorus". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011. Archived from the original on 2020-11-12. Retrieved 2023-01-21.