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Tamisiocaris

Extinct genus of marine animals

Tamisiocaris

Extinct genus of marine animals

Size diagram

Tamisiocaris (from Latin tamisium, sieve, and Greek karis, crab, shrimp) is a radiodont genus from the Cambrian period. The taxon was initially described in 2010 based on frontal appendages discovered from the Sirius Passet lagerstatte in northern Greenland. A subsequent study by Vinther and colleagues in 2014 revealed that the frontal appendages were segmented and bore densely packed auxiliary spines, which were adapted to suspension feeding in a manner analogous to modern baleen whales. It is assigned to the family Tamisiocarididae, and is measured about 22.8 - long.

Life reconstruction of ''Tamisiocaris borealis'' alongside other organisms from the Sirius Passet.

Phylogeny

Tamisiocaris in cladogram after Vinther et al., 2014.

References

References

  1. (2014). "A suspension-feeding anomalocarid from the Early Cambrian". Nature.
  2. (September 2018). "New suspension-feeding radiodont suggests evolution of microplanktivory in Cambrian macronekton". Nature Communications.
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radiodonta monotypic-prehistoric-arthropod-genera cambrian-arthropods cambrian-greenland fossils-of-greenland sirius-passet-fossils buen-formation fossil-taxa-described-in-2010 cambrian-genus-extinctions
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