Sunnaginia

Sunnaginia; Temporal range: Lower Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Clade:	Lophophorata
Order:	†"Tommotiida"
Genus:	†Sunnaginia; Missarzhevsky, 1969

Sunnaginia is a tommotiid known from the Comely Limestone and elsewhere, and appears to represent one of the closest relatives to the brachiopod crown group, in a more derived position than Eccentrotheca.[1]

References

Murdock, D. J. E.; Donoghue, P. C. J.; Bengtson, S.; Marone, F. (2012). "Ontogeny and microstructure of the enigmatic Cambrian tommotiid Sunnaginia Missarzhevsky, 1969". Palaeontology: no–no. doi:10.1111/j.1475-4983.2012.01131.x.

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[1] Murdock, D. J. E.; Donoghue, P. C. J.; Bengtson, S.; Marone, F. (2012). "Ontogeny and microstructure of the enigmatic Cambrian tommotiid Sunnaginia Missarzhevsky, 1969". Palaeontology: no–no. doi:10.1111/j.1475-4983.2012.01131.x.