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Margaretia dorus Temporal range: Middle Cambrian |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Anthozoa |
| Subclass: | |
| Order: | Alcyonacea |
| Genus: | Margaretia |
| Species: | M. dorus |
| Binomial name | |
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Margaretia dorus |
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The Burgess shale organism Margaretia dorus resembles an , according to C.D. Walcott (1931). It was later reclassified as a green alga closely resembling modern Caulerpa by D.F. Satterthwait in her Ph.D. thesis in 1976 and confirmed by Conway Morris and Robison in 1988.