Amiskwia sagittiformis
Amiskwia sagittiformis fuit species animalium gelatinosorum stadii Wuliui periodi Cambriae mediae. Fossilia huius speciei e schisto Burgessensi in Columbia Britannica reperta sunt.
Bibliographia
recensere- Budd, G.E.; Jensen, S. (2000). "A critical reappraisal of the fossil record of the bilaterian phyla". Biological Reviews 75 (2): 253–295
- Conway Morris, S. (1977). "A redescription of the Middle Cambrian worm Amiskwia sagittiformis Walcott from the Burgess Shale of British Columbia". Paläontologische Zeitschrift 51: 271–287.
- Doguzhaeva, L.A.; Mutvei, H.; Mapes, R.H. (2002). "Chaetognath grasping spines from the Upper Mississippian of Arkansas (USA)". Acta Palaeontologica Polonica 47 (3): 421–430.
- Kasatkina, A.P. (1982). Ŝetinkočelustnyje morej SSSR i sopredel'nyh vod. Nauka, Leningrad.
- Vannier, J.; Steiner, M.; Renvoisé, E.; Hu, S.X.; Casanova, J.P. (2007). "Early Cambrian origin of modern food webs: evidence from predator arrow worms". Proceedings of the Royal Society B: Biological Sciences 274 (1610): 627–633
- Jakob Vinther, Luke A. Parry, "Bilateral Jaw Elements in Amiskwia sagittiformis Bridge the Morphological Gap between Gnathiferans and Chaetognaths" in Current Biology vol. 29 (4 Martii 2019) pp. 1–8
- Charles D. Walcott, "Middle Cambrian annelids" in Smithsonian Miscellaneous Collections vol. 57 (1911) pp. 109-144