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Genus of extinct, gnathiferan worms
Amiskwia is a genus of soft-bodied marine animals known from fossils of the Middle Cambrian Lagerstätten both in the Burgess Shale in British Columbia
Amiskwia
Taxonomic clade
defecation. Unlike other chaetognathiferans, in chaetognaths and the extinct Amiskwia the anus is located on the ventral surface in a subterminal position. Both
Gnathifera
Extinct genus of arrow worm
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
Timorebestia
Phylum of marine worms
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
Chaetognatha
First geological period of the Paleozoic Era
horseshoe-shaped carapace. Pikaia was a stem-chordate from the Middle Cambrian Amiskwia sagittiformis was a large bodied gnathiferan from Canada and China Haplophrentis
Cambrian
Extinct animal genus
(chaetognaths) as well as other extinct Cambrian relatives like the large Amiskwia also known from the Burgess Shale, with the "lateral jaw elements" and
Nectocaris
Superphylum of protostomes
improves phylogenetic frameworks: re-evaluating placement of the fossil Amiskwia sagittiformis" (PDF). Journal of Systematic Palaeontology. 20 (1): 1–14
Ecdysozoa
Extinct genus of nectocaridid
grade along with other stem-group chaetognathans like Timorebestia and Amiskwia. The team produced a majority (50%) rule consensus tree from a Bayesian
Nektognathus
Extinct bottle-shaped parasitic worm
locomotion. Vinther, Jakob; Parry, Luke A. (2019). "Bilateral jaw elements in Amiskwia sagittiformis bridge the morphological gap between gnathiferans and chaetognaths"
Inquicus
Fossil flora and fauna of the Burgess Shale
Retrieved 2022-11-03. Caron, Jean-Bernard; Cheung, Brittany (2019). "Amiskwia is a large Cambrian gnathiferan with complex gnathostomulid-like jaws"
Paleobiota of the Burgess Shale
Paleobiota_of_the_Burgess_Shale
Phylum of invertebrates, ribbon worms
traces from the Middle Triassic of Germany. The Middle Cambrian fossil Amiskwia from the Burgess Shale has been classed as a nemertean, based on a resemblance
Nemertea
Extinct genus of enigmatic animal
improves phylogenetic frameworks: re-evaluating placement of the fossil Amiskwia sagittiformis". Journal of Systematic Palaeontology. 20 (1): 1–14. doi:10
Dakorhachis
Superphylum of unsegmented animals
Micrognathozoa Syndermata (Rotifera) including Acanthocephala Chaetognatha †Amiskwia (not placed in a phylum) †Timorebestia (stem-chaetognath) †Inquicus †Nectocarididae
Platyzoa
Cambrian genus of chaetognath
improves phylogenetic frameworks: re-evaluating placement of the fossil Amiskwia sagittiformis" (PDF). Journal of Systematic Palaeontology. 20 (1): 1–14
Ankalodous
Genus Species Material Notes Images Amiskwia A. sinica Inquicus I. fellatus Petalilium P. latus Possible synonym of Nectocaris pteryx
Paleobiota of the Maotianshan Shales
Paleobiota_of_the_Maotianshan_Shales
Mid-Cambrian fossils from a deposit in British Columbia, Canada
there does not seem to be much diversity within the genus aside from size. Amiskwia Gnathifera stem-group Chaetognatha A large actively swimming, soft bodied
Fossils_of_the_Burgess_Shale
Class of worms of the phylum Nemertea
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
Enopla
Formation by Verde et al. (2022). A study on the phylogenetic affinities of Amiskwia sagittiformis is published by Bekkouche & Gąsiorowski (2022), who recover
2022_in_paleontology
Name Novelty Status Authors Age Type locality Country Notes Images Amiskwia Gen. et sp. nov Valid Walcott Cambrian Burgess Shale Canada A soft-bodied organism
1911_in_paleontology
Topics referred to by the same term
River, a river in British Columbia (from the Cree word for Beavertail) Amiskwia, a fossil This disambiguation page lists articles associated with the title
Amisk
Fossil-bearing member
Conway Morris, S. (1977). "A redescription of the Middle Cambrian worm Amiskwia sagittiformis Walcott from the Burgess Shale of British Columbia". Paläontologische
Phyllopod_bed
Devonian strata is published by Wei (2019). A study on the anatomy of Amiskwia sagittiformis is published by Vinther & Parry (2019), who interpret two
2019_in_paleontology
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