Capinatator
Capinatator praetermissus is an extinct arrow worm from the Burgess Shale Lagerstatte, living about 508 million years ago in what is now British Columbia.[2] It has the distinction of having 50 spines around its mouth. As with modern arrow worms, the spines were used to grasp prey for consumption. C. praetermissus is thought to represent a stage of chaetognathan evolution before arrow worms became planktonic swimmers.[2]
| Capinatator | |
|---|---|
 | |
| C. praetermissus compared to Amiskwia | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chaetognatha |
| Genus: | †Capinatator |
| Species: | †C. praetermissus |
| Binomial name | |
| †Capinatator praetermissus Briggs and Caron, 2017[1] | |
The worm was 10 cm long. The spines were curved and around 1 cm long.[2]
The generic name "Capinatator" means "grasping swimmer".[2]
References
- Briggs, Derek E.G; Caron, Jean-Bernard (2017). "A Large Cambrian Chaetognath with Supernumerary Grasping Spines". Current Biology. 27 (16): 2536–2543.e1. doi:10.1016/j.cub.2017.07.003. PMID 28781052.
- Borenstein, Seth (3 August 2017). "Scientists ID tiny prehistoric sea worm with 50 head spines". phys.org. Retrieved 6 August 2017.
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