Pomoria rhomboidalis are Late Ediacaran microfossils of cyanobacterial trichome which is a characteristic taxon of the fossil microbiota in the East European Platform, it is also found in the Siberia and China.[1][2][3] It is the only species in the genus Pomoria.[2]

Pomoria rhomboidalis
Scientific classification
Domain:
Phylum:
Genus:
Pomoria

Sivertzeva et Jankauskas, 1989
Species:
P. rhomboidalis
Binomial name
Pomoria rhomboidalis
(Sivertzeva)

Originally, this fossil was described as Oscillatoriopsis rhomboidalis Sivertzeva, 1985 on the basis of a specimen from Torozhma borehole, Arkhangelsk Region, Russia.[1][4] Later, the species O. rhomboidalis was reassigned to the separate genus Pomoria Sivertzeva et Jankauskas, 1989.[2]

Pomoria is distinguished from other fossil trichomes by a thin longitudinal or diagonal striate sculpture.[2][3]

References

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  1. ^ a b A.L. Ragozina, L.A. Sivertseva, (1985). "Microfossils of Valday Group of North-West of Arkhangelsk region". In Sokolov, B. S. and Iwanowski, A. B., eds., "Vendian System: Historical–Geological and Paleontological Foundation, Vol. 1: Paleontology". Moscow: Nauka, pp. 139–144. (In Russian)
  2. ^ a b c d T.V. Jankauskas et al., (1989). "Systematic description of microfossils". In T.V. Jankauskas et al., ed., "Precambrian microfossils of the USSR". Leningrad: Nauka, pp. 75–151. (In Russian)
  3. ^ a b Nagovitsin, K.E.; Kochnev, B.B. (2015). "Microfossils and biofacies of the Vendian fossil biota in the southern Siberian Platform". Russian Geology and Geophysics. 56 (4): 584–593. doi:10.1016/j.rgg.2015.03.009.
  4. ^ Grazhdankin, D. V. (2003). "The compositional and depositional environment of the Vendian complex in the Southeastern White Sea Region". Stratigraphy and Geological Correlation. 11 (4): 313–331.