Fossil of Amiskwia sagittiformis from the Burgess Shale
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Total group:
Gnathifera
Genus:
†Amiskwia Walcott, 1911
Type species
Amiskwia sagittiformis
Walcott, 1911
Species
A. sagittiformis
A. sinica Luo & Hu, 2002
Amiskwia is a genus of soft-bodied animals known from fossils of the Middle Cambrian Lagerstätten both in the Burgess Shale in British Columbia, Canada and the Maotianshan shales of Yunnan Province, China. It is interpreted as a member of the clade Gnathifera sensu lato[1] or as a stem-chaetognath.[2][3][4]
^Caron, Jean-Bernard; Cheung, Brittany (2019). "Amiskwia is a large Cambrian gnathiferan with complex gnathostomulid-like jaws". Communications Biology. 2: 164. doi:10.1038/s42003-019-0388-4. PMC 6499802. PMID 31069273.
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Amiskwia is a genus of soft-bodied animals known from fossils of the Middle Cambrian Lagerstätten both in the Burgess Shale in British Columbia, Canada...
a chaetognath, but was probably more basal to modern arrow worms than Amiskwia. As of January 2024, 13 known specimens have been assigned to this species...
falcatus was a hurdiid radiodont that bore a large horseshoe-shaped carapace. Amiskwia sagittiformis was a large bodied gnathiferan from Canada and China Haplophrentis...
four families, six genera, for a total of 58 species - plus the extinct Amiskwia, classified as a true primitive chaetognath in a separate class, Archisagittoidea...
Miaolingian PreꞒ Ꞓ O S D C P T J K Pg N ↓ C. praetermissus compared to Amiskwia Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chaetognatha...
but no fossilized stylets have been found. The Middle Cambrian fossil Amiskwia from the Burgess Shale has been classed as a nemertean, based on a resemblance...
chaetognathan evolution before arrow worms became planktonic swimmers. Amiskwia Total group Gnathifera 26 specimens of the Burgess shale species A large...
locomotion. Vinther, Jakob; Parry, Luke A. (2019). "Bilateral jaw elements in Amiskwia sagittiformis bridge the morphological gap between gnathiferans and chaetognaths"...
River, a river in British Columbia (from the Cree word for Beavertail) Amiskwia, a fossil This disambiguation page lists articles associated with the title...
Conway Morris, S. (1977). "A redescription of the Middle Cambrian worm Amiskwia sagittiformis Walcott from the Burgess Shale of British Columbia". Paläontologische...
Formation by Verde et al. (2022). A study on the phylogenetic affinities of Amiskwia sagittiformis is published by Bekkouche & Gąsiorowski (2022), who recover...
as would be expected from a soft-bodied animal. The Cambrian fossil, Amiskwia, has been interpreted as a nemertean based on its resemblance to some pelagic...
Name Novelty Status Authors Age Type locality Country Notes Images Amiskwia Gen. et sp. nov Valid Walcott Cambrian Burgess Shale Canada A soft-bodied...
Devonian strata is published by Wei (2019). A study on the anatomy of Amiskwia sagittiformis is published by Vinther & Parry (2019), who interpret two...
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