Tamisiocaris
| 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 | |
| Part of a series on |
| The Cambrian explosion |
|---|
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 22.8–33.6 cm (0.75–1.10 ft) long.