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Extinct genus of marine animals From Wikipedia, the free encyclopedia
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..[1] 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.[2] It is assigned to the family Tamisiocarididae, and is measured about 22.8–33.6 cm (0.75–1.10 ft) long.[3]
| Tamisiocaris Temporal range: | |
|---|---|
 | |
 | |
| Movement of a frontal appendage | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Order: | †Radiodonta |
| Family: | †Tamisiocarididae |
| Genus: | †Tamisiocaris Daley & Peel, 2010 |
| Species: | †T. borealis |
| Binomial name | |
| †Tamisiocaris borealis Daley & Peel, 2010 | |
Tamisiocaris in cladogram after Vinther et al., 2014.[2]
| Radiodonta |
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