Oymurania

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Oymurania
Temporal range: Cambrian
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Stem group: Brachiopoda
Informal group:† Tommotiids
Informal group:† Tannuolinids (?)
Genus:† Oymurania
Kouchinsky et al. 2014 [1]

Oymurania is an organophosphatic Cambrian small shelly fossil interpreted as a stem-group Brachiopod. It consists of a pair of Micrina-like shells that broadly follow a logarithmic coiling trajectory with a high rate of expansion. [1]

Microstructure

Its shell comprises an inner prismatic layer, with hexagonal prisms that run through the full depth of the layer, and an outer layer that contains an acrotretid-like microstructure of surface-parallel laminae punctuated by pore-bearing rod-like columns. [2]

References

  1. 1 2 Kouchinsky, Artem; Holmer, Lars; Ushatinskaya, Galina; Steiner, Michael (2014). "The new stem-group brachiopod Oymurania from the lower Cambrian of Siberia". Acta Palaeontologica Polonica. doi: 10.4202/app.00037.2013 . ISSN   0567-7920.
  2. ↑ Acta Palaeontol. Pol. 62 (1): 39–43, 2017 https://doi.org/10.4202/app.00320.2016


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