Temporal range: Burgess Shale
Conway Morris, 1993
Thaumaptilon is a fossil genus of animals from the middle Cambrian Burgess Shale which some authors have compared to members of the Ediacaran biota, generally believed to have disappeared at the start of the Cambrian, . It was up to 20 cm long, and attached itself to the sea floor with a holdfast.
Leaf-shaped, Thaumaptilon had a central axis extending to its tip, with many "ribs" radiating from it, in a similar manner to the ribs of a leaf. these may have had canals connecting them to the axis. One side of its surface was covered in spots, which might have been zooids.
The name Thaumaptilon derives from the Greek thauma, "wonderful", + ptilon, "soft feather".
- "Thaumaptilon walcotti". Burgess Shale Fossil Gallery. Virtual Museum of Canada. 2011.
- Conway Morris, S. (1993). "Ediacaran-like fossils in Cambrian Burgess Shale-type faunas of North America" (PDF). Palaeontology. 36 (3): 593–635. Archived from the original (PDF) on 2012-03-09.
- Crimes, T. P.; McIlroy, D. (1999). "A biota of Ediacaran aspect from lower Cambrian strata on the Digermul Peninsula, Arctic Norway". Geological Magazine. 136 (6): 633. Bibcode:1999GeoM..136..633C. doi:10.1017/S0016756899003179.
- Jensen, S. R.; Gehling, J. G.; Droser, M. L. (1998). "Ediacara-type fossils in Cambrian sediments". Nature. 393 (6685): 567. Bibcode:1998Natur.393..567J. doi:10.1038/31215.
- Williams, G.C. 1997. Preliminary assessment of the phylogenetics of pennatulacean octocorals, with a reevaluation of Ediacaran frond-like fossils, and a synthesis of the history of evolutionary thought regarding the sea pens. Proceedings of the Sixth International Conference of Coelenterate Biology: 497-509.
- Antcliffe, J. B.; Brasier, M. D. (2007). "Charnia and sea pens are poles apart". Journal of the Geological Society. 164: 49. doi:10.1144/0016-76492006-080.
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