Tamisiocaris

Extinct genus of marine animals
Size diagram

Tamisiocaris
Temporal range: Cambrian Stage 3
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Movement of a frontal appendage
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: †Dinocaridida
Order: †Radiodonta
Family: †Tamisiocarididae
Genus: †Tamisiocaris
Daley & Peel, 2010
Species:
†T. borealis
Binomial name
†Tamisiocaris borealis
Daley & Peel, 2010
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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]

Phylogeny

Tamisiocaris in cladogram after Vinther et al., 2014.[2]

References

  1. ^ Daley, Allison & Peel, John S. (2010). "A possible anomalocaridid from the Cambrian Sirius Passet lagerstätte, North Greenland". Journal of Paleontology. 84 (2): 352–355. doi:10.1666/09-136R1.1.
  2. ^ a b Vinther, Jakob; Stein, Martin; Longrich, Nicholas R. & Harper, David A. T. (2014). "A suspension-feeding anomalocarid from the Early Cambrian". Nature. 507 (7493): 496–499. doi:10.1038/nature13010. hdl:1983/88f89453-e81f-4767-a74d-1794c33e6b34. PMID 24670770.
  3. ^ Lerosey-Aubril, Rudy and Pates, Stephen (September 2018). "New suspension-feeding radiodont suggests evolution of microplanktivory in Cambrian macronekton". Nature Communications. 9 (1): 3774. Bibcode:2018NatCo...9.3774L. doi:10.1038/s41467-018-06229-7. PMC 6138677. PMID 30218075. Dryad Data
Taxon identifiers
Tamisiocaris borealis