Allonnia
Allonnia Temporal range: Cambrian Stage 2–Middle Cambrian | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | incertae sedis |
Class: | †Coeloscleritophora |
Order: | Chancelloriida |
Family: | Chancelloriidae |
Genus: | Allonnia Doré and Reid, 1965 |
Species | |
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Allonnia is a genus of coeloscleritophoran known as complete scleritomes from the Middle Cambrian Burgess Shale. It is also a constituent of the small shelly fauna.[1]
Its earliest occurrence in Yunnan dates to the Upper Meishucunian (~ Tommotian / Cambrian Stage 2) [2]
References
- ↑ Brock, G. A.; Cooper, B. J. (1993). "Shelly Fossils from the Early Cambrian (Toyonian) Wirrealpa, Aroona Creek, and Ramsay Limestones of South Australia". Journal of Paleontology. 67 (5): 758–787. JSTOR 1306041. doi:10.2307/1306041.
- ↑ Kouchinsky A. V., Bengtson S., Runnegar B.N., Skovsted C.B., Steiner M., Vendrasco M.J. 2012. Chronology of early Cambrian biomineralization. Geol. Mag. 149:221–251.
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